Home / 141,802.53-195,691.68-78,144.45

Finding the Fourth Proportional to 141,802.53, 195,691.68 and 78,144.45

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Solution

The fourth proportional to 141,802.53, 195,691.68 and 78,144.45 is: 107,841.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,802.53 : 195,691.68 = 78,144.45 : x
  2. Step 2: Convert to fraction form
    141,802.53/195,691.68 = 78,144.45/x
  3. Step 3: Cross multiply
    141,802.53x = 195,691.68 × 78,144.45
  4. Step 4: Simplify right side
    141,802.53x = 15,292,218,703.18
  5. Step 5: Solve for x
    x = 15,292,218,703.18/141,802.53
  6. Step 6: Final answer
    x = 107,841.65

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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.