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Finding the Fourth Proportional to 159,807.60, 239,711.40 and 100,904.40

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Solution

The fourth proportional to 159,807.60, 239,711.40 and 100,904.40 is: 151,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,807.60 : 239,711.40 = 100,904.40 : x
  2. Step 2: Convert to fraction form
    159,807.60/239,711.40 = 100,904.40/x
  3. Step 3: Cross multiply
    159,807.60x = 239,711.40 × 100,904.40
  4. Step 4: Simplify right side
    159,807.60x = 24,187,934,990.16
  5. Step 5: Solve for x
    x = 24,187,934,990.16/159,807.60
  6. Step 6: Final answer
    x = 151,356.60

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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.