Home / 118,778.07-177,919.17-71,242.41

Finding the Fourth Proportional to 118,778.07, 177,919.17 and 71,242.41

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Solution

The fourth proportional to 118,778.07, 177,919.17 and 71,242.41 is: 106,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,778.07 : 177,919.17 = 71,242.41 : x
  2. Step 2: Convert to fraction form
    118,778.07/177,919.17 = 71,242.41/x
  3. Step 3: Cross multiply
    118,778.07x = 177,919.17 × 71,242.41
  4. Step 4: Simplify right side
    118,778.07x = 12,675,390,456.00
  5. Step 5: Solve for x
    x = 12,675,390,456.00/118,778.07
  6. Step 6: Final answer
    x = 106,714.90

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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.