Home / 141,677.50-195,514.95-78,015.15

Finding the Fourth Proportional to 141,677.50, 195,514.95 and 78,015.15

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Solution

The fourth proportional to 141,677.50, 195,514.95 and 78,015.15 is: 107,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,677.50 : 195,514.95 = 78,015.15 : x
  2. Step 2: Convert to fraction form
    141,677.50/195,514.95 = 78,015.15/x
  3. Step 3: Cross multiply
    141,677.50x = 195,514.95 × 78,015.15
  4. Step 4: Simplify right side
    141,677.50x = 15,253,128,151.49
  5. Step 5: Solve for x
    x = 15,253,128,151.49/141,677.50
  6. Step 6: Final answer
    x = 107,660.91

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1.5x scale

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.