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Finding the Fourth Proportional to 156,044.60, 234,066.90 and 118,719.80

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Solution

The fourth proportional to 156,044.60, 234,066.90 and 118,719.80 is: 178,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,044.60 : 234,066.90 = 118,719.80 : x
  2. Step 2: Convert to fraction form
    156,044.60/234,066.90 = 118,719.80/x
  3. Step 3: Cross multiply
    156,044.60x = 234,066.90 × 118,719.80
  4. Step 4: Simplify right side
    156,044.60x = 27,788,375,554.62
  5. Step 5: Solve for x
    x = 27,788,375,554.62/156,044.60
  6. Step 6: Final answer
    x = 178,079.70

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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.