Home / 99,385.14-137,283.76-97,939.30

Finding the Fourth Proportional to 99,385.14, 137,283.76 and 97,939.30

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Solution

The fourth proportional to 99,385.14, 137,283.76 and 97,939.30 is: 135,286.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,385.14 : 137,283.76 = 97,939.30 : x
  2. Step 2: Convert to fraction form
    99,385.14/137,283.76 = 97,939.30/x
  3. Step 3: Cross multiply
    99,385.14x = 137,283.76 × 97,939.30
  4. Step 4: Simplify right side
    99,385.14x = 13,445,475,355.77
  5. Step 5: Solve for x
    x = 13,445,475,355.77/99,385.14
  6. Step 6: Final answer
    x = 135,286.58

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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.