Home / 118,227.28-177,140.44-71,381.76

Finding the Fourth Proportional to 118,227.28, 177,140.44 and 71,381.76

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Solution

The fourth proportional to 118,227.28, 177,140.44 and 71,381.76 is: 106,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,227.28 : 177,140.44 = 71,381.76 : x
  2. Step 2: Convert to fraction form
    118,227.28/177,140.44 = 71,381.76/x
  3. Step 3: Cross multiply
    118,227.28x = 177,140.44 × 71,381.76
  4. Step 4: Simplify right side
    118,227.28x = 12,644,596,374.37
  5. Step 5: Solve for x
    x = 12,644,596,374.37/118,227.28
  6. Step 6: Final answer
    x = 106,951.60

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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.