Home / 156,245.49-234,379.27-77,338.53

Finding the Fourth Proportional to 156,245.49, 234,379.27 and 77,338.53

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Solution

The fourth proportional to 156,245.49, 234,379.27 and 77,338.53 is: 116,013.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,245.49 : 234,379.27 = 77,338.53 : x
  2. Step 2: Convert to fraction form
    156,245.49/234,379.27 = 77,338.53/x
  3. Step 3: Cross multiply
    156,245.49x = 234,379.27 × 77,338.53
  4. Step 4: Simplify right side
    156,245.49x = 18,126,548,300.95
  5. Step 5: Solve for x
    x = 18,126,548,300.95/156,245.49
  6. Step 6: Final answer
    x = 116,013.26

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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.