Home / 141,761.45-195,639.63-78,099.23

Finding the Fourth Proportional to 141,761.45, 195,639.63 and 78,099.23

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Solution

The fourth proportional to 141,761.45, 195,639.63 and 78,099.23 is: 107,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,761.45 : 195,639.63 = 78,099.23 : x
  2. Step 2: Convert to fraction form
    141,761.45/195,639.63 = 78,099.23/x
  3. Step 3: Cross multiply
    141,761.45x = 195,639.63 × 78,099.23
  4. Step 4: Simplify right side
    141,761.45x = 15,279,304,460.48
  5. Step 5: Solve for x
    x = 15,279,304,460.48/141,761.45
  6. Step 6: Final answer
    x = 107,781.80

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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.