Home / 154,115.12-231,182.76-47,486

Finding the Fourth Proportional to 154,115.12, 231,182.76 and 47,486

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Solution

The fourth proportional to 154,115.12, 231,182.76 and 47,486 is: 71,232.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,115.12 : 231,182.76 = 47,486 : x
  2. Step 2: Convert to fraction form
    154,115.12/231,182.76 = 47,486/x
  3. Step 3: Cross multiply
    154,115.12x = 231,182.76 × 47,486
  4. Step 4: Simplify right side
    154,115.12x = 10,977,944,541.36
  5. Step 5: Solve for x
    x = 10,977,944,541.36/154,115.12
  6. Step 6: Final answer
    x = 71,232.11

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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.