Home / 118,231.17-163,135.11-75,227.73

Finding the Fourth Proportional to 118,231.17, 163,135.11 and 75,227.73

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Solution

The fourth proportional to 118,231.17, 163,135.11 and 75,227.73 is: 103,799.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,231.17 : 163,135.11 = 75,227.73 : x
  2. Step 2: Convert to fraction form
    118,231.17/163,135.11 = 75,227.73/x
  3. Step 3: Cross multiply
    118,231.17x = 163,135.11 × 75,227.73
  4. Step 4: Simplify right side
    118,231.17x = 12,272,284,008.60
  5. Step 5: Solve for x
    x = 12,272,284,008.60/118,231.17
  6. Step 6: Final answer
    x = 103,799.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.