Home / 141,802.28-195,691.34-78,144.20

Finding the Fourth Proportional to 141,802.28, 195,691.34 and 78,144.20

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Solution

The fourth proportional to 141,802.28, 195,691.34 and 78,144.20 is: 107,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,802.28 : 195,691.34 = 78,144.20 : x
  2. Step 2: Convert to fraction form
    141,802.28/195,691.34 = 78,144.20/x
  3. Step 3: Cross multiply
    141,802.28x = 195,691.34 × 78,144.20
  4. Step 4: Simplify right side
    141,802.28x = 15,292,142,820.51
  5. Step 5: Solve for x
    x = 15,292,142,820.51/141,802.28
  6. Step 6: Final answer
    x = 107,841.30

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1.5x scale

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.