Home / 127,669.20-191,489.28-48,781.68

Finding the Fourth Proportional to 127,669.20, 191,489.28 and 48,781.68

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Solution

The fourth proportional to 127,669.20, 191,489.28 and 48,781.68 is: 73,166.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,669.20 : 191,489.28 = 48,781.68 : x
  2. Step 2: Convert to fraction form
    127,669.20/191,489.28 = 48,781.68/x
  3. Step 3: Cross multiply
    127,669.20x = 191,489.28 × 48,781.68
  4. Step 4: Simplify right side
    127,669.20x = 9,341,168,780.39
  5. Step 5: Solve for x
    x = 9,341,168,780.39/127,669.20
  6. Step 6: Final answer
    x = 73,166.97

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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.