Home / 158,540.05-218,787.06-90,566.02

Finding the Fourth Proportional to 158,540.05, 218,787.06 and 90,566.02

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Solution

The fourth proportional to 158,540.05, 218,787.06 and 90,566.02 is: 124,982.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,540.05 : 218,787.06 = 90,566.02 : x
  2. Step 2: Convert to fraction form
    158,540.05/218,787.06 = 90,566.02/x
  3. Step 3: Cross multiply
    158,540.05x = 218,787.06 × 90,566.02
  4. Step 4: Simplify right side
    158,540.05x = 19,814,673,251.70
  5. Step 5: Solve for x
    x = 19,814,673,251.70/158,540.05
  6. Step 6: Final answer
    x = 124,982.13

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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.