Home / 177,311.52-265,966.64-72,105.76

Finding the Fourth Proportional to 177,311.52, 265,966.64 and 72,105.76

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Solution

The fourth proportional to 177,311.52, 265,966.64 and 72,105.76 is: 108,158.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,311.52 : 265,966.64 = 72,105.76 : x
  2. Step 2: Convert to fraction form
    177,311.52/265,966.64 = 72,105.76/x
  3. Step 3: Cross multiply
    177,311.52x = 265,966.64 × 72,105.76
  4. Step 4: Simplify right side
    177,311.52x = 19,177,726,711.85
  5. Step 5: Solve for x
    x = 19,177,726,711.85/177,311.52
  6. Step 6: Final answer
    x = 108,158.38

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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.