Home / 177,921.60-266,785.20-72,621.60

Finding the Fourth Proportional to 177,921.60, 266,785.20 and 72,621.60

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Solution

The fourth proportional to 177,921.60, 266,785.20 and 72,621.60 is: 108,892.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,921.60 : 266,785.20 = 72,621.60 : x
  2. Step 2: Convert to fraction form
    177,921.60/266,785.20 = 72,621.60/x
  3. Step 3: Cross multiply
    177,921.60x = 266,785.20 × 72,621.60
  4. Step 4: Simplify right side
    177,921.60x = 19,374,368,080.32
  5. Step 5: Solve for x
    x = 19,374,368,080.32/177,921.60
  6. Step 6: Final answer
    x = 108,892.73

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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.