Home / 141,981.00-195,918.65-78,318.80

Finding the Fourth Proportional to 141,981.00, 195,918.65 and 78,318.80

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Solution

The fourth proportional to 141,981.00, 195,918.65 and 78,318.80 is: 108,071.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,981.00 : 195,918.65 = 78,318.80 : x
  2. Step 2: Convert to fraction form
    141,981.00/195,918.65 = 78,318.80/x
  3. Step 3: Cross multiply
    141,981.00x = 195,918.65 × 78,318.80
  4. Step 4: Simplify right side
    141,981.00x = 15,344,112,194.43
  5. Step 5: Solve for x
    x = 15,344,112,194.43/141,981.00
  6. Step 6: Final answer
    x = 108,071.59

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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.