Home / 154,427.30-231,640.95-92,219.30

Finding the Fourth Proportional to 154,427.30, 231,640.95 and 92,219.30

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Solution

The fourth proportional to 154,427.30, 231,640.95 and 92,219.30 is: 138,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,427.30 : 231,640.95 = 92,219.30 : x
  2. Step 2: Convert to fraction form
    154,427.30/231,640.95 = 92,219.30/x
  3. Step 3: Cross multiply
    154,427.30x = 231,640.95 × 92,219.30
  4. Step 4: Simplify right side
    154,427.30x = 21,361,766,260.34
  5. Step 5: Solve for x
    x = 21,361,766,260.34/154,427.30
  6. Step 6: Final answer
    x = 138,328.95

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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.