Home / 99,418.43-137,248.26-76,706.39

Finding the Fourth Proportional to 99,418.43, 137,248.26 and 76,706.39

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Solution

The fourth proportional to 99,418.43, 137,248.26 and 76,706.39 is: 105,894.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,418.43 : 137,248.26 = 76,706.39 : x
  2. Step 2: Convert to fraction form
    99,418.43/137,248.26 = 76,706.39/x
  3. Step 3: Cross multiply
    99,418.43x = 137,248.26 × 76,706.39
  4. Step 4: Simplify right side
    99,418.43x = 10,527,818,558.38
  5. Step 5: Solve for x
    x = 10,527,818,558.38/99,418.43
  6. Step 6: Final answer
    x = 105,894.03

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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.