Home / 213,081.57-319,234.73-124,065.20

Finding the Fourth Proportional to 213,081.57, 319,234.73 and 124,065.20

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Solution

The fourth proportional to 213,081.57, 319,234.73 and 124,065.20 is: 185,872.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,081.57 : 319,234.73 = 124,065.20 : x
  2. Step 2: Convert to fraction form
    213,081.57/319,234.73 = 124,065.20/x
  3. Step 3: Cross multiply
    213,081.57x = 319,234.73 × 124,065.20
  4. Step 4: Simplify right side
    213,081.57x = 39,605,920,802.16
  5. Step 5: Solve for x
    x = 39,605,920,802.16/213,081.57
  6. Step 6: Final answer
    x = 185,872.11

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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.