Home / 213,204.42-319,768.16-55,423.17

Finding the Fourth Proportional to 213,204.42, 319,768.16 and 55,423.17

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Solution

The fourth proportional to 213,204.42, 319,768.16 and 55,423.17 is: 83,124.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,204.42 : 319,768.16 = 55,423.17 : x
  2. Step 2: Convert to fraction form
    213,204.42/319,768.16 = 55,423.17/x
  3. Step 3: Cross multiply
    213,204.42x = 319,768.16 × 55,423.17
  4. Step 4: Simplify right side
    213,204.42x = 17,722,564,815.15
  5. Step 5: Solve for x
    x = 17,722,564,815.15/213,204.42
  6. Step 6: Final answer
    x = 83,124.75

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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.