Home / 141,503.24-195,275.40-77,839.40

Finding the Fourth Proportional to 141,503.24, 195,275.40 and 77,839.40

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Solution

The fourth proportional to 141,503.24, 195,275.40 and 77,839.40 is: 107,418.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,503.24 : 195,275.40 = 77,839.40 : x
  2. Step 2: Convert to fraction form
    141,503.24/195,275.40 = 77,839.40/x
  3. Step 3: Cross multiply
    141,503.24x = 195,275.40 × 77,839.40
  4. Step 4: Simplify right side
    141,503.24x = 15,200,119,970.76
  5. Step 5: Solve for x
    x = 15,200,119,970.76/141,503.24
  6. Step 6: Final answer
    x = 107,418.88

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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.