Home / 141,785.04-195,691.60-81,396.48

Finding the Fourth Proportional to 141,785.04, 195,691.60 and 81,396.48

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Solution

The fourth proportional to 141,785.04, 195,691.60 and 81,396.48 is: 112,343.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,785.04 : 195,691.60 = 81,396.48 : x
  2. Step 2: Convert to fraction form
    141,785.04/195,691.60 = 81,396.48/x
  3. Step 3: Cross multiply
    141,785.04x = 195,691.60 × 81,396.48
  4. Step 4: Simplify right side
    141,785.04x = 15,928,607,405.57
  5. Step 5: Solve for x
    x = 15,928,607,405.57/141,785.04
  6. Step 6: Final answer
    x = 112,343.36

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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.