Home / 178,857.20-268,285.80-107,998.40

Finding the Fourth Proportional to 178,857.20, 268,285.80 and 107,998.40

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Solution

The fourth proportional to 178,857.20, 268,285.80 and 107,998.40 is: 161,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,857.20 : 268,285.80 = 107,998.40 : x
  2. Step 2: Convert to fraction form
    178,857.20/268,285.80 = 107,998.40/x
  3. Step 3: Cross multiply
    178,857.20x = 268,285.80 × 107,998.40
  4. Step 4: Simplify right side
    178,857.20x = 28,974,437,142.72
  5. Step 5: Solve for x
    x = 28,974,437,142.72/178,857.20
  6. Step 6: Final answer
    x = 161,997.60

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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.