Home / 125,459.38-172,894.70-123,153.31

Finding the Fourth Proportional to 125,459.38, 172,894.70 and 123,153.31

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Solution

The fourth proportional to 125,459.38, 172,894.70 and 123,153.31 is: 169,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,459.38 : 172,894.70 = 123,153.31 : x
  2. Step 2: Convert to fraction form
    125,459.38/172,894.70 = 123,153.31/x
  3. Step 3: Cross multiply
    125,459.38x = 172,894.70 × 123,153.31
  4. Step 4: Simplify right side
    125,459.38x = 21,292,555,110.46
  5. Step 5: Solve for x
    x = 21,292,555,110.46/125,459.38
  6. Step 6: Final answer
    x = 169,716.72

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1.5x scale

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.