Home / 177,981.60-266,972.40-107,997.60

Finding the Fourth Proportional to 177,981.60, 266,972.40 and 107,997.60

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Solution

The fourth proportional to 177,981.60, 266,972.40 and 107,997.60 is: 161,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,981.60 : 266,972.40 = 107,997.60 : x
  2. Step 2: Convert to fraction form
    177,981.60/266,972.40 = 107,997.60/x
  3. Step 3: Cross multiply
    177,981.60x = 266,972.40 × 107,997.60
  4. Step 4: Simplify right side
    177,981.60x = 28,832,378,466.24
  5. Step 5: Solve for x
    x = 28,832,378,466.24/177,981.60
  6. Step 6: Final answer
    x = 161,996.40

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1.5x scale

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.