Home / 154,680.20-232,992.38-140,729.84

Finding the Fourth Proportional to 154,680.20, 232,992.38 and 140,729.84

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Solution

The fourth proportional to 154,680.20, 232,992.38 and 140,729.84 is: 211,979.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,680.20 : 232,992.38 = 140,729.84 : x
  2. Step 2: Convert to fraction form
    154,680.20/232,992.38 = 140,729.84/x
  3. Step 3: Cross multiply
    154,680.20x = 232,992.38 × 140,729.84
  4. Step 4: Simplify right side
    154,680.20x = 32,788,980,358.62
  5. Step 5: Solve for x
    x = 32,788,980,358.62/154,680.20
  6. Step 6: Final answer
    x = 211,979.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.