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Finding the Fourth Proportional to 178,781.59, 246,615.52 and 107,120.10

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Solution

The fourth proportional to 178,781.59, 246,615.52 and 107,120.10 is: 147,763.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,781.59 : 246,615.52 = 107,120.10 : x
  2. Step 2: Convert to fraction form
    178,781.59/246,615.52 = 107,120.10/x
  3. Step 3: Cross multiply
    178,781.59x = 246,615.52 × 107,120.10
  4. Step 4: Simplify right side
    178,781.59x = 26,417,477,715.04
  5. Step 5: Solve for x
    x = 26,417,477,715.04/178,781.59
  6. Step 6: Final answer
    x = 147,763.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.