Home / 141,707.92-195,565.78-78,045.70

Finding the Fourth Proportional to 141,707.92, 195,565.78 and 78,045.70

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Solution

The fourth proportional to 141,707.92, 195,565.78 and 78,045.70 is: 107,707.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,707.92 : 195,565.78 = 78,045.70 : x
  2. Step 2: Convert to fraction form
    141,707.92/195,565.78 = 78,045.70/x
  3. Step 3: Cross multiply
    141,707.92x = 195,565.78 × 78,045.70
  4. Step 4: Simplify right side
    141,707.92x = 15,263,068,196.15
  5. Step 5: Solve for x
    x = 15,263,068,196.15/141,707.92
  6. Step 6: Final answer
    x = 107,707.94

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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.