Home / 141,480.27-195,239.57-77,816.70

Finding the Fourth Proportional to 141,480.27, 195,239.57 and 77,816.70

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Solution

The fourth proportional to 141,480.27, 195,239.57 and 77,816.70 is: 107,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,480.27 : 195,239.57 = 77,816.70 : x
  2. Step 2: Convert to fraction form
    141,480.27/195,239.57 = 77,816.70/x
  3. Step 3: Cross multiply
    141,480.27x = 195,239.57 × 77,816.70
  4. Step 4: Simplify right side
    141,480.27x = 15,192,898,657.74
  5. Step 5: Solve for x
    x = 15,192,898,657.74/141,480.27
  6. Step 6: Final answer
    x = 107,385.28

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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.