Home / 197,425.85-272,322.14-129,447.20

Finding the Fourth Proportional to 197,425.85, 272,322.14 and 129,447.20

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Solution

The fourth proportional to 197,425.85, 272,322.14 and 129,447.20 is: 178,554.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,425.85 : 272,322.14 = 129,447.20 : x
  2. Step 2: Convert to fraction form
    197,425.85/272,322.14 = 129,447.20/x
  3. Step 3: Cross multiply
    197,425.85x = 272,322.14 × 129,447.20
  4. Step 4: Simplify right side
    197,425.85x = 35,251,338,554.58
  5. Step 5: Solve for x
    x = 35,251,338,554.58/197,425.85
  6. Step 6: Final answer
    x = 178,554.83

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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.