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Finding the Fourth Proportional to 154,745.20, 232,117.80 and 76,013.20

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Solution

The fourth proportional to 154,745.20, 232,117.80 and 76,013.20 is: 114,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,745.20 : 232,117.80 = 76,013.20 : x
  2. Step 2: Convert to fraction form
    154,745.20/232,117.80 = 76,013.20/x
  3. Step 3: Cross multiply
    154,745.20x = 232,117.80 × 76,013.20
  4. Step 4: Simplify right side
    154,745.20x = 17,644,016,754.96
  5. Step 5: Solve for x
    x = 17,644,016,754.96/154,745.20
  6. Step 6: Final answer
    x = 114,019.80

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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.