Home / 125,716.91-173,491.94-69,128.15

Finding the Fourth Proportional to 125,716.91, 173,491.94 and 69,128.15

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Solution

The fourth proportional to 125,716.91, 173,491.94 and 69,128.15 is: 95,398.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,716.91 : 173,491.94 = 69,128.15 : x
  2. Step 2: Convert to fraction form
    125,716.91/173,491.94 = 69,128.15/x
  3. Step 3: Cross multiply
    125,716.91x = 173,491.94 × 69,128.15
  4. Step 4: Simplify right side
    125,716.91x = 11,993,176,157.47
  5. Step 5: Solve for x
    x = 11,993,176,157.47/125,716.91
  6. Step 6: Final answer
    x = 95,398.28

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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.