Home / 156,780.06-235,174.55-38,451.30

Finding the Fourth Proportional to 156,780.06, 235,174.55 and 38,451.30

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Solution

The fourth proportional to 156,780.06, 235,174.55 and 38,451.30 is: 57,678.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,780.06 : 235,174.55 = 38,451.30 : x
  2. Step 2: Convert to fraction form
    156,780.06/235,174.55 = 38,451.30/x
  3. Step 3: Cross multiply
    156,780.06x = 235,174.55 × 38,451.30
  4. Step 4: Simplify right side
    156,780.06x = 9,042,766,982.16
  5. Step 5: Solve for x
    x = 9,042,766,982.16/156,780.06
  6. Step 6: Final answer
    x = 57,678.04

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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.