Home / 154,963.12-232,569.21-80,105.17

Finding the Fourth Proportional to 154,963.12, 232,569.21 and 80,105.17

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Solution

The fourth proportional to 154,963.12, 232,569.21 and 80,105.17 is: 120,222.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,963.12 : 232,569.21 = 80,105.17 : x
  2. Step 2: Convert to fraction form
    154,963.12/232,569.21 = 80,105.17/x
  3. Step 3: Cross multiply
    154,963.12x = 232,569.21 × 80,105.17
  4. Step 4: Simplify right side
    154,963.12x = 18,629,996,103.82
  5. Step 5: Solve for x
    x = 18,629,996,103.82/154,963.12
  6. Step 6: Final answer
    x = 120,222.13

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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.