Home / 156,209.72-234,126.77-71,853.66

Finding the Fourth Proportional to 156,209.72, 234,126.77 and 71,853.66

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Solution

The fourth proportional to 156,209.72, 234,126.77 and 71,853.66 is: 107,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,209.72 : 234,126.77 = 71,853.66 : x
  2. Step 2: Convert to fraction form
    156,209.72/234,126.77 = 71,853.66/x
  3. Step 3: Cross multiply
    156,209.72x = 234,126.77 × 71,853.66
  4. Step 4: Simplify right side
    156,209.72x = 16,822,864,969.21
  5. Step 5: Solve for x
    x = 16,822,864,969.21/156,209.72
  6. Step 6: Final answer
    x = 107,694.10

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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.