Home / 219,819.55-329,557.07-86,799.38

Finding the Fourth Proportional to 219,819.55, 329,557.07 and 86,799.38

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Solution

The fourth proportional to 219,819.55, 329,557.07 and 86,799.38 is: 130,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,819.55 : 329,557.07 = 86,799.38 : x
  2. Step 2: Convert to fraction form
    219,819.55/329,557.07 = 86,799.38/x
  3. Step 3: Cross multiply
    219,819.55x = 329,557.07 × 86,799.38
  4. Step 4: Simplify right side
    219,819.55x = 28,605,347,268.83
  5. Step 5: Solve for x
    x = 28,605,347,268.83/219,819.55
  6. Step 6: Final answer
    x = 130,131.04

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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.