Home / 197,534.72-272,544-112,620.80

Finding the Fourth Proportional to 197,534.72, 272,544 and 112,620.80

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Solution

The fourth proportional to 197,534.72, 272,544 and 112,620.80 is: 155,385.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,534.72 : 272,544 = 112,620.80 : x
  2. Step 2: Convert to fraction form
    197,534.72/272,544 = 112,620.80/x
  3. Step 3: Cross multiply
    197,534.72x = 272,544 × 112,620.80
  4. Step 4: Simplify right side
    197,534.72x = 30,694,123,315.20
  5. Step 5: Solve for x
    x = 30,694,123,315.20/197,534.72
  6. Step 6: Final answer
    x = 155,385.97

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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.