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Finding the Fourth Proportional to 177,956.70, 266,999.85 and 72,851.10

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Solution

The fourth proportional to 177,956.70, 266,999.85 and 72,851.10 is: 109,303.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,956.70 : 266,999.85 = 72,851.10 : x
  2. Step 2: Convert to fraction form
    177,956.70/266,999.85 = 72,851.10/x
  3. Step 3: Cross multiply
    177,956.70x = 266,999.85 × 72,851.10
  4. Step 4: Simplify right side
    177,956.70x = 19,451,232,772.34
  5. Step 5: Solve for x
    x = 19,451,232,772.34/177,956.70
  6. Step 6: Final answer
    x = 109,303.18

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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.