Home / 100,225.68-138,216-59,932.92

Finding the Fourth Proportional to 100,225.68, 138,216 and 59,932.92

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Solution

The fourth proportional to 100,225.68, 138,216 and 59,932.92 is: 82,650.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,225.68 : 138,216 = 59,932.92 : x
  2. Step 2: Convert to fraction form
    100,225.68/138,216 = 59,932.92/x
  3. Step 3: Cross multiply
    100,225.68x = 138,216 × 59,932.92
  4. Step 4: Simplify right side
    100,225.68x = 8,283,688,470.72
  5. Step 5: Solve for x
    x = 8,283,688,470.72/100,225.68
  6. Step 6: Final answer
    x = 82,650.36

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Double scale
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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.