Home / 100,208.43-138,192.18-59,915.66

Finding the Fourth Proportional to 100,208.43, 138,192.18 and 59,915.66

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Solution

The fourth proportional to 100,208.43, 138,192.18 and 59,915.66 is: 82,626.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,208.43 : 138,192.18 = 59,915.66 : x
  2. Step 2: Convert to fraction form
    100,208.43/138,192.18 = 59,915.66/x
  3. Step 3: Cross multiply
    100,208.43x = 138,192.18 × 59,915.66
  4. Step 4: Simplify right side
    100,208.43x = 8,279,874,980.58
  5. Step 5: Solve for x
    x = 8,279,874,980.58/100,208.43
  6. Step 6: Final answer
    x = 82,626.53

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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.