Home / 141,707.83-195,565.65-78,045.61

Finding the Fourth Proportional to 141,707.83, 195,565.65 and 78,045.61

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Solution

The fourth proportional to 141,707.83, 195,565.65 and 78,045.61 is: 107,707.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,707.83 : 195,565.65 = 78,045.61 : x
  2. Step 2: Convert to fraction form
    141,707.83/195,565.65 = 78,045.61/x
  3. Step 3: Cross multiply
    141,707.83x = 195,565.65 × 78,045.61
  4. Step 4: Simplify right side
    141,707.83x = 15,263,040,449.30
  5. Step 5: Solve for x
    x = 15,263,040,449.30/141,707.83
  6. Step 6: Final answer
    x = 107,707.81

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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.