Home / 138,815.23-208,306.15-59,929.38

Finding the Fourth Proportional to 138,815.23, 208,306.15 and 59,929.38

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Solution

The fourth proportional to 138,815.23, 208,306.15 and 59,929.38 is: 89,930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,815.23 : 208,306.15 = 59,929.38 : x
  2. Step 2: Convert to fraction form
    138,815.23/208,306.15 = 59,929.38/x
  3. Step 3: Cross multiply
    138,815.23x = 208,306.15 × 59,929.38
  4. Step 4: Simplify right side
    138,815.23x = 12,483,658,419.69
  5. Step 5: Solve for x
    x = 12,483,658,419.69/138,815.23
  6. Step 6: Final answer
    x = 89,930.03

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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.