Home / 125,581.76-173,302.32-68,220.80

Finding the Fourth Proportional to 125,581.76, 173,302.32 and 68,220.80

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Solution

The fourth proportional to 125,581.76, 173,302.32 and 68,220.80 is: 94,144.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,581.76 : 173,302.32 = 68,220.80 : x
  2. Step 2: Convert to fraction form
    125,581.76/173,302.32 = 68,220.80/x
  3. Step 3: Cross multiply
    125,581.76x = 173,302.32 × 68,220.80
  4. Step 4: Simplify right side
    125,581.76x = 11,822,822,912.26
  5. Step 5: Solve for x
    x = 11,822,822,912.26/125,581.76
  6. Step 6: Final answer
    x = 94,144.43

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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.