Home / 125,057.38-172,579.19-68,468.76

Finding the Fourth Proportional to 125,057.38, 172,579.19 and 68,468.76

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Solution

The fourth proportional to 125,057.38, 172,579.19 and 68,468.76 is: 94,486.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,057.38 : 172,579.19 = 68,468.76 : x
  2. Step 2: Convert to fraction form
    125,057.38/172,579.19 = 68,468.76/x
  3. Step 3: Cross multiply
    125,057.38x = 172,579.19 × 68,468.76
  4. Step 4: Simplify right side
    125,057.38x = 11,816,283,141.10
  5. Step 5: Solve for x
    x = 11,816,283,141.10/125,057.38
  6. Step 6: Final answer
    x = 94,486.89

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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.