Home / 125,491.32-173,179-71,773.12

Finding the Fourth Proportional to 125,491.32, 173,179 and 71,773.12

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Solution

The fourth proportional to 125,491.32, 173,179 and 71,773.12 is: 99,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,491.32 : 173,179 = 71,773.12 : x
  2. Step 2: Convert to fraction form
    125,491.32/173,179 = 71,773.12/x
  3. Step 3: Cross multiply
    125,491.32x = 173,179 × 71,773.12
  4. Step 4: Simplify right side
    125,491.32x = 12,429,597,148.48
  5. Step 5: Solve for x
    x = 12,429,597,148.48/125,491.32
  6. Step 6: Final answer
    x = 99,047.47

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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.