Home / 125,651.66-173,439.70-80,451.38

Finding the Fourth Proportional to 125,651.66, 173,439.70 and 80,451.38

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Solution

The fourth proportional to 125,651.66, 173,439.70 and 80,451.38 is: 111,048.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,651.66 : 173,439.70 = 80,451.38 : x
  2. Step 2: Convert to fraction form
    125,651.66/173,439.70 = 80,451.38/x
  3. Step 3: Cross multiply
    125,651.66x = 173,439.70 × 80,451.38
  4. Step 4: Simplify right side
    125,651.66x = 13,953,463,211.79
  5. Step 5: Solve for x
    x = 13,953,463,211.79/125,651.66
  6. Step 6: Final answer
    x = 111,048.78

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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.