Home / 141,813.92-195,702.82-78,151.70

Finding the Fourth Proportional to 141,813.92, 195,702.82 and 78,151.70

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Solution

The fourth proportional to 141,813.92, 195,702.82 and 78,151.70 is: 107,849.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,813.92 : 195,702.82 = 78,151.70 : x
  2. Step 2: Convert to fraction form
    141,813.92/195,702.82 = 78,151.70/x
  3. Step 3: Cross multiply
    141,813.92x = 195,702.82 × 78,151.70
  4. Step 4: Simplify right side
    141,813.92x = 15,294,508,371.67
  5. Step 5: Solve for x
    x = 15,294,508,371.67/141,813.92
  6. Step 6: Final answer
    x = 107,849.13

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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.