Home / 197,310.52-272,288.10-112,427.56

Finding the Fourth Proportional to 197,310.52, 272,288.10 and 112,427.56

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Solution

The fourth proportional to 197,310.52, 272,288.10 and 112,427.56 is: 155,149.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,310.52 : 272,288.10 = 112,427.56 : x
  2. Step 2: Convert to fraction form
    197,310.52/272,288.10 = 112,427.56/x
  3. Step 3: Cross multiply
    197,310.52x = 272,288.10 × 112,427.56
  4. Step 4: Simplify right side
    197,310.52x = 30,612,686,700.04
  5. Step 5: Solve for x
    x = 30,612,686,700.04/197,310.52
  6. Step 6: Final answer
    x = 155,149.79

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1.5x scale

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.