Home / 125,040.78-172,555.92-68,451.75

Finding the Fourth Proportional to 125,040.78, 172,555.92 and 68,451.75

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Solution

The fourth proportional to 125,040.78, 172,555.92 and 68,451.75 is: 94,463.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,040.78 : 172,555.92 = 68,451.75 : x
  2. Step 2: Convert to fraction form
    125,040.78/172,555.92 = 68,451.75/x
  3. Step 3: Cross multiply
    125,040.78x = 172,555.92 × 68,451.75
  4. Step 4: Simplify right side
    125,040.78x = 11,811,754,696.86
  5. Step 5: Solve for x
    x = 11,811,754,696.86/125,040.78
  6. Step 6: Final answer
    x = 94,463.22

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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.