Home / 156,292.50-234,356.13-71,979.06

Finding the Fourth Proportional to 156,292.50, 234,356.13 and 71,979.06

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Solution

The fourth proportional to 156,292.50, 234,356.13 and 71,979.06 is: 107,930.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,292.50 : 234,356.13 = 71,979.06 : x
  2. Step 2: Convert to fraction form
    156,292.50/234,356.13 = 71,979.06/x
  3. Step 3: Cross multiply
    156,292.50x = 234,356.13 × 71,979.06
  4. Step 4: Simplify right side
    156,292.50x = 16,868,733,942.64
  5. Step 5: Solve for x
    x = 16,868,733,942.64/156,292.50
  6. Step 6: Final answer
    x = 107,930.54

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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.