Home / 215,010.38-322,515.59-74,769

Finding the Fourth Proportional to 215,010.38, 322,515.59 and 74,769

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Solution

The fourth proportional to 215,010.38, 322,515.59 and 74,769 is: 112,153.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,010.38 : 322,515.59 = 74,769 : x
  2. Step 2: Convert to fraction form
    215,010.38/322,515.59 = 74,769/x
  3. Step 3: Cross multiply
    215,010.38x = 322,515.59 × 74,769
  4. Step 4: Simplify right side
    215,010.38x = 24,114,167,774.87
  5. Step 5: Solve for x
    x = 24,114,167,774.87/215,010.38
  6. Step 6: Final answer
    x = 112,153.51

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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.