Home / 141,521.70-195,292.89-77,857.86

Finding the Fourth Proportional to 141,521.70, 195,292.89 and 77,857.86

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Solution

The fourth proportional to 141,521.70, 195,292.89 and 77,857.86 is: 107,439.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,521.70 : 195,292.89 = 77,857.86 : x
  2. Step 2: Convert to fraction form
    141,521.70/195,292.89 = 77,857.86/x
  3. Step 3: Cross multiply
    141,521.70x = 195,292.89 × 77,857.86
  4. Step 4: Simplify right side
    141,521.70x = 15,205,086,488.62
  5. Step 5: Solve for x
    x = 15,205,086,488.62/141,521.70
  6. Step 6: Final answer
    x = 107,439.96

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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.