Home / 125,824.70-173,645.27-72,118.66

Finding the Fourth Proportional to 125,824.70, 173,645.27 and 72,118.66

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Solution

The fourth proportional to 125,824.70, 173,645.27 and 72,118.66 is: 99,527.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,824.70 : 173,645.27 = 72,118.66 : x
  2. Step 2: Convert to fraction form
    125,824.70/173,645.27 = 72,118.66/x
  3. Step 3: Cross multiply
    125,824.70x = 173,645.27 × 72,118.66
  4. Step 4: Simplify right side
    125,824.70x = 12,523,064,843.07
  5. Step 5: Solve for x
    x = 12,523,064,843.07/125,824.70
  6. Step 6: Final answer
    x = 99,527.87

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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.