Home / 138,539.16-207,765-59,632.20

Finding the Fourth Proportional to 138,539.16, 207,765 and 59,632.20

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Solution

The fourth proportional to 138,539.16, 207,765 and 59,632.20 is: 89,429.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,539.16 : 207,765 = 59,632.20 : x
  2. Step 2: Convert to fraction form
    138,539.16/207,765 = 59,632.20/x
  3. Step 3: Cross multiply
    138,539.16x = 207,765 × 59,632.20
  4. Step 4: Simplify right side
    138,539.16x = 12,389,484,033
  5. Step 5: Solve for x
    x = 12,389,484,033/138,539.16
  6. Step 6: Final answer
    x = 89,429.47

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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.