Home / 93,738.20-140,607.30-86,521.10

Finding the Fourth Proportional to 93,738.20, 140,607.30 and 86,521.10

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Solution

The fourth proportional to 93,738.20, 140,607.30 and 86,521.10 is: 129,781.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,738.20 : 140,607.30 = 86,521.10 : x
  2. Step 2: Convert to fraction form
    93,738.20/140,607.30 = 86,521.10/x
  3. Step 3: Cross multiply
    93,738.20x = 140,607.30 × 86,521.10
  4. Step 4: Simplify right side
    93,738.20x = 12,165,498,264.03
  5. Step 5: Solve for x
    x = 12,165,498,264.03/93,738.20
  6. Step 6: Final answer
    x = 129,781.65

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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.