Home / 156,379.24-234,685.02-86,318.44

Finding the Fourth Proportional to 156,379.24, 234,685.02 and 86,318.44

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Solution

The fourth proportional to 156,379.24, 234,685.02 and 86,318.44 is: 129,541.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,379.24 : 234,685.02 = 86,318.44 : x
  2. Step 2: Convert to fraction form
    156,379.24/234,685.02 = 86,318.44/x
  3. Step 3: Cross multiply
    156,379.24x = 234,685.02 × 86,318.44
  4. Step 4: Simplify right side
    156,379.24x = 20,257,644,817.77
  5. Step 5: Solve for x
    x = 20,257,644,817.77/156,379.24
  6. Step 6: Final answer
    x = 129,541.78

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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.