Home / 197,321.72-272,306.95-112,436.96

Finding the Fourth Proportional to 197,321.72, 272,306.95 and 112,436.96

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Solution

The fourth proportional to 197,321.72, 272,306.95 and 112,436.96 is: 155,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,321.72 : 272,306.95 = 112,436.96 : x
  2. Step 2: Convert to fraction form
    197,321.72/272,306.95 = 112,436.96/x
  3. Step 3: Cross multiply
    197,321.72x = 272,306.95 × 112,436.96
  4. Step 4: Simplify right side
    197,321.72x = 30,617,365,644.87
  5. Step 5: Solve for x
    x = 30,617,365,644.87/197,321.72
  6. Step 6: Final answer
    x = 155,164.70

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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.