Home / 197,561.30-272,631.84-112,679.78

Finding the Fourth Proportional to 197,561.30, 272,631.84 and 112,679.78

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Solution

The fourth proportional to 197,561.30, 272,631.84 and 112,679.78 is: 155,496.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,561.30 : 272,631.84 = 112,679.78 : x
  2. Step 2: Convert to fraction form
    197,561.30/272,631.84 = 112,679.78/x
  3. Step 3: Cross multiply
    197,561.30x = 272,631.84 × 112,679.78
  4. Step 4: Simplify right side
    197,561.30x = 30,720,095,752.20
  5. Step 5: Solve for x
    x = 30,720,095,752.20/197,561.30
  6. Step 6: Final answer
    x = 155,496.53

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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.