Home / 141,795.80-195,677.27-78,133.61

Finding the Fourth Proportional to 141,795.80, 195,677.27 and 78,133.61

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Solution

The fourth proportional to 141,795.80, 195,677.27 and 78,133.61 is: 107,823.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,795.80 : 195,677.27 = 78,133.61 : x
  2. Step 2: Convert to fraction form
    141,795.80/195,677.27 = 78,133.61/x
  3. Step 3: Cross multiply
    141,795.80x = 195,677.27 × 78,133.61
  4. Step 4: Simplify right side
    141,795.80x = 15,288,971,891.57
  5. Step 5: Solve for x
    x = 15,288,971,891.57/141,795.80
  6. Step 6: Final answer
    x = 107,823.87

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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.