Home / 141,708.83-195,567.03-78,046.61

Finding the Fourth Proportional to 141,708.83, 195,567.03 and 78,046.61

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Solution

The fourth proportional to 141,708.83, 195,567.03 and 78,046.61 is: 107,709.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,708.83 : 195,567.03 = 78,046.61 : x
  2. Step 2: Convert to fraction form
    141,708.83/195,567.03 = 78,046.61/x
  3. Step 3: Cross multiply
    141,708.83x = 195,567.03 × 78,046.61
  4. Step 4: Simplify right side
    141,708.83x = 15,263,343,719.27
  5. Step 5: Solve for x
    x = 15,263,343,719.27/141,708.83
  6. Step 6: Final answer
    x = 107,709.19

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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.