Home / 215,773.29-323,648.14-66,013.57

Finding the Fourth Proportional to 215,773.29, 323,648.14 and 66,013.57

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Solution

The fourth proportional to 215,773.29, 323,648.14 and 66,013.57 is: 99,016.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,773.29 : 323,648.14 = 66,013.57 : x
  2. Step 2: Convert to fraction form
    215,773.29/323,648.14 = 66,013.57/x
  3. Step 3: Cross multiply
    215,773.29x = 323,648.14 × 66,013.57
  4. Step 4: Simplify right side
    215,773.29x = 21,365,168,171.11
  5. Step 5: Solve for x
    x = 21,365,168,171.11/215,773.29
  6. Step 6: Final answer
    x = 99,016.74

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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.