Home / 102,008.12-140,833.92-65,772.15

Finding the Fourth Proportional to 102,008.12, 140,833.92 and 65,772.15

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Solution

The fourth proportional to 102,008.12, 140,833.92 and 65,772.15 is: 90,806.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,008.12 : 140,833.92 = 65,772.15 : x
  2. Step 2: Convert to fraction form
    102,008.12/140,833.92 = 65,772.15/x
  3. Step 3: Cross multiply
    102,008.12x = 140,833.92 × 65,772.15
  4. Step 4: Simplify right side
    102,008.12x = 9,262,948,775.87
  5. Step 5: Solve for x
    x = 9,262,948,775.87/102,008.12
  6. Step 6: Final answer
    x = 90,806.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.