Home / 93,410.20-140,115.30-86,193.10

Finding the Fourth Proportional to 93,410.20, 140,115.30 and 86,193.10

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Solution

The fourth proportional to 93,410.20, 140,115.30 and 86,193.10 is: 129,289.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,410.20 : 140,115.30 = 86,193.10 : x
  2. Step 2: Convert to fraction form
    93,410.20/140,115.30 = 86,193.10/x
  3. Step 3: Cross multiply
    93,410.20x = 140,115.30 × 86,193.10
  4. Step 4: Simplify right side
    93,410.20x = 12,076,972,064.43
  5. Step 5: Solve for x
    x = 12,076,972,064.43/93,410.20
  6. Step 6: Final answer
    x = 129,289.65

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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.