Home / 226,609.76-312,729.11-124,639.52

Finding the Fourth Proportional to 226,609.76, 312,729.11 and 124,639.52

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Solution

The fourth proportional to 226,609.76, 312,729.11 and 124,639.52 is: 172,006.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,609.76 : 312,729.11 = 124,639.52 : x
  2. Step 2: Convert to fraction form
    226,609.76/312,729.11 = 124,639.52/x
  3. Step 3: Cross multiply
    226,609.76x = 312,729.11 × 124,639.52
  4. Step 4: Simplify right side
    226,609.76x = 38,978,403,973.58
  5. Step 5: Solve for x
    x = 38,978,403,973.58/226,609.76
  6. Step 6: Final answer
    x = 172,006.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.