Home / 141,310.06-195,007.19-76,778.87

Finding the Fourth Proportional to 141,310.06, 195,007.19 and 76,778.87

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Solution

The fourth proportional to 141,310.06, 195,007.19 and 76,778.87 is: 105,954.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,310.06 : 195,007.19 = 76,778.87 : x
  2. Step 2: Convert to fraction form
    141,310.06/195,007.19 = 76,778.87/x
  3. Step 3: Cross multiply
    141,310.06x = 195,007.19 × 76,778.87
  4. Step 4: Simplify right side
    141,310.06x = 14,972,430,331.15
  5. Step 5: Solve for x
    x = 14,972,430,331.15/141,310.06
  6. Step 6: Final answer
    x = 105,954.46

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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.