Home / 156,780.56-235,175.30-38,451.80

Finding the Fourth Proportional to 156,780.56, 235,175.30 and 38,451.80

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Solution

The fourth proportional to 156,780.56, 235,175.30 and 38,451.80 is: 57,678.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,780.56 : 235,175.30 = 38,451.80 : x
  2. Step 2: Convert to fraction form
    156,780.56/235,175.30 = 38,451.80/x
  3. Step 3: Cross multiply
    156,780.56x = 235,175.30 × 38,451.80
  4. Step 4: Simplify right side
    156,780.56x = 9,042,913,600.54
  5. Step 5: Solve for x
    x = 9,042,913,600.54/156,780.56
  6. Step 6: Final answer
    x = 57,678.79

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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.