Home / 141,861.60-195,761.04-78,187.44

Finding the Fourth Proportional to 141,861.60, 195,761.04 and 78,187.44

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Solution

The fourth proportional to 141,861.60, 195,761.04 and 78,187.44 is: 107,894.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,861.60 : 195,761.04 = 78,187.44 : x
  2. Step 2: Convert to fraction form
    141,861.60/195,761.04 = 78,187.44/x
  3. Step 3: Cross multiply
    141,861.60x = 195,761.04 × 78,187.44
  4. Step 4: Simplify right side
    141,861.60x = 15,306,054,569.34
  5. Step 5: Solve for x
    x = 15,306,054,569.34/141,861.60
  6. Step 6: Final answer
    x = 107,894.28

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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.