Home / 153,721.12-230,540.40-58,930.72

Finding the Fourth Proportional to 153,721.12, 230,540.40 and 58,930.72

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Solution

The fourth proportional to 153,721.12, 230,540.40 and 58,930.72 is: 88,380.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,721.12 : 230,540.40 = 58,930.72 : x
  2. Step 2: Convert to fraction form
    153,721.12/230,540.40 = 58,930.72/x
  3. Step 3: Cross multiply
    153,721.12x = 230,540.40 × 58,930.72
  4. Step 4: Simplify right side
    153,721.12x = 13,585,911,761.09
  5. Step 5: Solve for x
    x = 13,585,911,761.09/153,721.12
  6. Step 6: Final answer
    x = 88,380.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.