Home / 93,742.20-140,613.30-86,525.10

Finding the Fourth Proportional to 93,742.20, 140,613.30 and 86,525.10

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Solution

The fourth proportional to 93,742.20, 140,613.30 and 86,525.10 is: 129,787.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,742.20 : 140,613.30 = 86,525.10 : x
  2. Step 2: Convert to fraction form
    93,742.20/140,613.30 = 86,525.10/x
  3. Step 3: Cross multiply
    93,742.20x = 140,613.30 × 86,525.10
  4. Step 4: Simplify right side
    93,742.20x = 12,166,579,843.83
  5. Step 5: Solve for x
    x = 12,166,579,843.83/93,742.20
  6. Step 6: Final answer
    x = 129,787.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.