Home / 141,829.06-195,723.12-78,166.96

Finding the Fourth Proportional to 141,829.06, 195,723.12 and 78,166.96

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Solution

The fourth proportional to 141,829.06, 195,723.12 and 78,166.96 is: 107,869.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,829.06 : 195,723.12 = 78,166.96 : x
  2. Step 2: Convert to fraction form
    141,829.06/195,723.12 = 78,166.96/x
  3. Step 3: Cross multiply
    141,829.06x = 195,723.12 × 78,166.96
  4. Step 4: Simplify right side
    141,829.06x = 15,299,081,292.12
  5. Step 5: Solve for x
    x = 15,299,081,292.12/141,829.06
  6. Step 6: Final answer
    x = 107,869.86

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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.