Home / 132,362.10-198,543.15-90,371.70

Finding the Fourth Proportional to 132,362.10, 198,543.15 and 90,371.70

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Solution

The fourth proportional to 132,362.10, 198,543.15 and 90,371.70 is: 135,557.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,362.10 : 198,543.15 = 90,371.70 : x
  2. Step 2: Convert to fraction form
    132,362.10/198,543.15 = 90,371.70/x
  3. Step 3: Cross multiply
    132,362.10x = 198,543.15 × 90,371.70
  4. Step 4: Simplify right side
    132,362.10x = 17,942,681,988.86
  5. Step 5: Solve for x
    x = 17,942,681,988.86/132,362.10
  6. Step 6: Final answer
    x = 135,557.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.