Home / 125,687.78-188,279.24-58,125.11

Finding the Fourth Proportional to 125,687.78, 188,279.24 and 58,125.11

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Solution

The fourth proportional to 125,687.78, 188,279.24 and 58,125.11 is: 87,070.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,687.78 : 188,279.24 = 58,125.11 : x
  2. Step 2: Convert to fraction form
    125,687.78/188,279.24 = 58,125.11/x
  3. Step 3: Cross multiply
    125,687.78x = 188,279.24 × 58,125.11
  4. Step 4: Simplify right side
    125,687.78x = 10,943,751,989.81
  5. Step 5: Solve for x
    x = 10,943,751,989.81/125,687.78
  6. Step 6: Final answer
    x = 87,070.93

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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.