Home / 125,179.19-187,798.31-40,939.02

Finding the Fourth Proportional to 125,179.19, 187,798.31 and 40,939.02

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Solution

The fourth proportional to 125,179.19, 187,798.31 and 40,939.02 is: 61,418.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,179.19 : 187,798.31 = 40,939.02 : x
  2. Step 2: Convert to fraction form
    125,179.19/187,798.31 = 40,939.02/x
  3. Step 3: Cross multiply
    125,179.19x = 187,798.31 × 40,939.02
  4. Step 4: Simplify right side
    125,179.19x = 7,688,278,769.06
  5. Step 5: Solve for x
    x = 7,688,278,769.06/125,179.19
  6. Step 6: Final answer
    x = 61,418.19

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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.