Home / 125,407.26-172,903.68-107,255.16

Finding the Fourth Proportional to 125,407.26, 172,903.68 and 107,255.16

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Solution

The fourth proportional to 125,407.26, 172,903.68 and 107,255.16 is: 147,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,407.26 : 172,903.68 = 107,255.16 : x
  2. Step 2: Convert to fraction form
    125,407.26/172,903.68 = 107,255.16/x
  3. Step 3: Cross multiply
    125,407.26x = 172,903.68 × 107,255.16
  4. Step 4: Simplify right side
    125,407.26x = 18,544,811,862.99
  5. Step 5: Solve for x
    x = 18,544,811,862.99/125,407.26
  6. Step 6: Final answer
    x = 147,876.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.