Home / 118,138.20-177,207.30-51,610.20

Finding the Fourth Proportional to 118,138.20, 177,207.30 and 51,610.20

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Solution

The fourth proportional to 118,138.20, 177,207.30 and 51,610.20 is: 77,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,138.20 : 177,207.30 = 51,610.20 : x
  2. Step 2: Convert to fraction form
    118,138.20/177,207.30 = 51,610.20/x
  3. Step 3: Cross multiply
    118,138.20x = 177,207.30 × 51,610.20
  4. Step 4: Simplify right side
    118,138.20x = 9,145,704,194.46
  5. Step 5: Solve for x
    x = 9,145,704,194.46/118,138.20
  6. Step 6: Final answer
    x = 77,415.30

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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.