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Finding the Fourth Proportional to 127,648.76, 191,502 and 42,259.46

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Solution

The fourth proportional to 127,648.76, 191,502 and 42,259.46 is: 63,398.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,648.76 : 191,502 = 42,259.46 : x
  2. Step 2: Convert to fraction form
    127,648.76/191,502 = 42,259.46/x
  3. Step 3: Cross multiply
    127,648.76x = 191,502 × 42,259.46
  4. Step 4: Simplify right side
    127,648.76x = 8,092,770,151.41
  5. Step 5: Solve for x
    x = 8,092,770,151.41/127,648.76
  6. Step 6: Final answer
    x = 63,398.74

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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.