Home / 132,420.24-198,663.84-38,925.90

Finding the Fourth Proportional to 132,420.24, 198,663.84 and 38,925.90

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Solution

The fourth proportional to 132,420.24, 198,663.84 and 38,925.90 is: 58,398.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,420.24 : 198,663.84 = 38,925.90 : x
  2. Step 2: Convert to fraction form
    132,420.24/198,663.84 = 38,925.90/x
  3. Step 3: Cross multiply
    132,420.24x = 198,663.84 × 38,925.90
  4. Step 4: Simplify right side
    132,420.24x = 7,733,168,769.46
  5. Step 5: Solve for x
    x = 7,733,168,769.46/132,420.24
  6. Step 6: Final answer
    x = 58,398.69

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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.