Home / 141,781.04-195,686.08-81,392.48

Finding the Fourth Proportional to 141,781.04, 195,686.08 and 81,392.48

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Solution

The fourth proportional to 141,781.04, 195,686.08 and 81,392.48 is: 112,337.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,781.04 : 195,686.08 = 81,392.48 : x
  2. Step 2: Convert to fraction form
    141,781.04/195,686.08 = 81,392.48/x
  3. Step 3: Cross multiply
    141,781.04x = 195,686.08 × 81,392.48
  4. Step 4: Simplify right side
    141,781.04x = 15,927,375,352.68
  5. Step 5: Solve for x
    x = 15,927,375,352.68/141,781.04
  6. Step 6: Final answer
    x = 112,337.84

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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.