Home / 136,265.04-188,065.62-81,820.88

Finding the Fourth Proportional to 136,265.04, 188,065.62 and 81,820.88

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Solution

The fourth proportional to 136,265.04, 188,065.62 and 81,820.88 is: 112,924.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,265.04 : 188,065.62 = 81,820.88 : x
  2. Step 2: Convert to fraction form
    136,265.04/188,065.62 = 81,820.88/x
  3. Step 3: Cross multiply
    136,265.04x = 188,065.62 × 81,820.88
  4. Step 4: Simplify right side
    136,265.04x = 15,387,694,526.15
  5. Step 5: Solve for x
    x = 15,387,694,526.15/136,265.04
  6. Step 6: Final answer
    x = 112,924.74

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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.