Home / 154,747.20-232,120.80-76,015.20

Finding the Fourth Proportional to 154,747.20, 232,120.80 and 76,015.20

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Solution

The fourth proportional to 154,747.20, 232,120.80 and 76,015.20 is: 114,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,747.20 : 232,120.80 = 76,015.20 : x
  2. Step 2: Convert to fraction form
    154,747.20/232,120.80 = 76,015.20/x
  3. Step 3: Cross multiply
    154,747.20x = 232,120.80 × 76,015.20
  4. Step 4: Simplify right side
    154,747.20x = 17,644,709,036.16
  5. Step 5: Solve for x
    x = 17,644,709,036.16/154,747.20
  6. Step 6: Final answer
    x = 114,022.80

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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.