Home / 141,321.92-195,036.66-77,672.12

Finding the Fourth Proportional to 141,321.92, 195,036.66 and 77,672.12

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Solution

The fourth proportional to 141,321.92, 195,036.66 and 77,672.12 is: 107,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,321.92 : 195,036.66 = 77,672.12 : x
  2. Step 2: Convert to fraction form
    141,321.92/195,036.66 = 77,672.12/x
  3. Step 3: Cross multiply
    141,321.92x = 195,036.66 × 77,672.12
  4. Step 4: Simplify right side
    141,321.92x = 15,148,909,884.74
  5. Step 5: Solve for x
    x = 15,148,909,884.74/141,321.92
  6. Step 6: Final answer
    x = 107,194.34

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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.