Home / 100,386.17-138,537.24-60,092.15

Finding the Fourth Proportional to 100,386.17, 138,537.24 and 60,092.15

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Solution

The fourth proportional to 100,386.17, 138,537.24 and 60,092.15 is: 82,929.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,386.17 : 138,537.24 = 60,092.15 : x
  2. Step 2: Convert to fraction form
    100,386.17/138,537.24 = 60,092.15/x
  3. Step 3: Cross multiply
    100,386.17x = 138,537.24 × 60,092.15
  4. Step 4: Simplify right side
    100,386.17x = 8,324,999,913.98
  5. Step 5: Solve for x
    x = 8,324,999,913.98/100,386.17
  6. Step 6: Final answer
    x = 82,929.75

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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.