Home / 156,034.20-234,051.30-140,287.80

Finding the Fourth Proportional to 156,034.20, 234,051.30 and 140,287.80

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Solution

The fourth proportional to 156,034.20, 234,051.30 and 140,287.80 is: 210,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,034.20 : 234,051.30 = 140,287.80 : x
  2. Step 2: Convert to fraction form
    156,034.20/234,051.30 = 140,287.80/x
  3. Step 3: Cross multiply
    156,034.20x = 234,051.30 × 140,287.80
  4. Step 4: Simplify right side
    156,034.20x = 32,834,541,964.14
  5. Step 5: Solve for x
    x = 32,834,541,964.14/156,034.20
  6. Step 6: Final answer
    x = 210,431.70

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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.