Home / 141,747.77-195,612.27-78,086.63

Finding the Fourth Proportional to 141,747.77, 195,612.27 and 78,086.63

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Solution

The fourth proportional to 141,747.77, 195,612.27 and 78,086.63 is: 107,759.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,747.77 : 195,612.27 = 78,086.63 : x
  2. Step 2: Convert to fraction form
    141,747.77/195,612.27 = 78,086.63/x
  3. Step 3: Cross multiply
    141,747.77x = 195,612.27 × 78,086.63
  4. Step 4: Simplify right side
    141,747.77x = 15,274,703,147.16
  5. Step 5: Solve for x
    x = 15,274,703,147.16/141,747.77
  6. Step 6: Final answer
    x = 107,759.74

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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.