Home / 215,072.43-322,592.44-86,996.85

Finding the Fourth Proportional to 215,072.43, 322,592.44 and 86,996.85

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Solution

The fourth proportional to 215,072.43, 322,592.44 and 86,996.85 is: 130,488.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,072.43 : 322,592.44 = 86,996.85 : x
  2. Step 2: Convert to fraction form
    215,072.43/322,592.44 = 86,996.85/x
  3. Step 3: Cross multiply
    215,072.43x = 322,592.44 × 86,996.85
  4. Step 4: Simplify right side
    215,072.43x = 28,064,526,113.81
  5. Step 5: Solve for x
    x = 28,064,526,113.81/215,072.43
  6. Step 6: Final answer
    x = 130,488.72

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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.