Home / 124,947.41-172,431.72-68,358.78

Finding the Fourth Proportional to 124,947.41, 172,431.72 and 68,358.78

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Solution

The fourth proportional to 124,947.41, 172,431.72 and 68,358.78 is: 94,337.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,947.41 : 172,431.72 = 68,358.78 : x
  2. Step 2: Convert to fraction form
    124,947.41/172,431.72 = 68,358.78/x
  3. Step 3: Cross multiply
    124,947.41x = 172,431.72 × 68,358.78
  4. Step 4: Simplify right side
    124,947.41x = 11,787,222,012.50
  5. Step 5: Solve for x
    x = 11,787,222,012.50/124,947.41
  6. Step 6: Final answer
    x = 94,337.47

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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.