Home / 197,289.95-272,195.88-120,729.15

Finding the Fourth Proportional to 197,289.95, 272,195.88 and 120,729.15

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Solution

The fourth proportional to 197,289.95, 272,195.88 and 120,729.15 is: 166,566.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,289.95 : 272,195.88 = 120,729.15 : x
  2. Step 2: Convert to fraction form
    197,289.95/272,195.88 = 120,729.15/x
  3. Step 3: Cross multiply
    197,289.95x = 272,195.88 × 120,729.15
  4. Step 4: Simplify right side
    197,289.95x = 32,861,976,773.17
  5. Step 5: Solve for x
    x = 32,861,976,773.17/197,289.95
  6. Step 6: Final answer
    x = 166,566.91

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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.