Home / 215,129.52-322,681.97-82,023.24

Finding the Fourth Proportional to 215,129.52, 322,681.97 and 82,023.24

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Solution

The fourth proportional to 215,129.52, 322,681.97 and 82,023.24 is: 123,030.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,129.52 : 322,681.97 = 82,023.24 : x
  2. Step 2: Convert to fraction form
    215,129.52/322,681.97 = 82,023.24/x
  3. Step 3: Cross multiply
    215,129.52x = 322,681.97 × 82,023.24
  4. Step 4: Simplify right side
    215,129.52x = 26,467,418,645.46
  5. Step 5: Solve for x
    x = 26,467,418,645.46/215,129.52
  6. Step 6: Final answer
    x = 123,030.16

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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.