Home / 141,717.21-195,560.76-78,055

Finding the Fourth Proportional to 141,717.21, 195,560.76 and 78,055

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Solution

The fourth proportional to 141,717.21, 195,560.76 and 78,055 is: 107,710.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,717.21 : 195,560.76 = 78,055 : x
  2. Step 2: Convert to fraction form
    141,717.21/195,560.76 = 78,055/x
  3. Step 3: Cross multiply
    141,717.21x = 195,560.76 × 78,055
  4. Step 4: Simplify right side
    141,717.21x = 15,264,495,121.80
  5. Step 5: Solve for x
    x = 15,264,495,121.80/141,717.21
  6. Step 6: Final answer
    x = 107,710.95

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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.