Home / 100,266.52-138,367.82-59,981.96

Finding the Fourth Proportional to 100,266.52, 138,367.82 and 59,981.96

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Solution

The fourth proportional to 100,266.52, 138,367.82 and 59,981.96 is: 82,775.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,266.52 : 138,367.82 = 59,981.96 : x
  2. Step 2: Convert to fraction form
    100,266.52/138,367.82 = 59,981.96/x
  3. Step 3: Cross multiply
    100,266.52x = 138,367.82 × 59,981.96
  4. Step 4: Simplify right side
    100,266.52x = 8,299,573,044.53
  5. Step 5: Solve for x
    x = 8,299,573,044.53/100,266.52
  6. Step 6: Final answer
    x = 82,775.12

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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.