Home / 99,903.20-137,585.76-97,725.92

Finding the Fourth Proportional to 99,903.20, 137,585.76 and 97,725.92

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Solution

The fourth proportional to 99,903.20, 137,585.76 and 97,725.92 is: 134,587.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,903.20 : 137,585.76 = 97,725.92 : x
  2. Step 2: Convert to fraction form
    99,903.20/137,585.76 = 97,725.92/x
  3. Step 3: Cross multiply
    99,903.20x = 137,585.76 × 97,725.92
  4. Step 4: Simplify right side
    99,903.20x = 13,445,694,974.90
  5. Step 5: Solve for x
    x = 13,445,694,974.90/99,903.20
  6. Step 6: Final answer
    x = 134,587.23

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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.