Home / 198,123.77-273,410.79-113,242.65

Finding the Fourth Proportional to 198,123.77, 273,410.79 and 113,242.65

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Solution

The fourth proportional to 198,123.77, 273,410.79 and 113,242.65 is: 156,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,123.77 : 273,410.79 = 113,242.65 : x
  2. Step 2: Convert to fraction form
    198,123.77/273,410.79 = 113,242.65/x
  3. Step 3: Cross multiply
    198,123.77x = 273,410.79 × 113,242.65
  4. Step 4: Simplify right side
    198,123.77x = 30,961,762,398.19
  5. Step 5: Solve for x
    x = 30,961,762,398.19/198,123.77
  6. Step 6: Final answer
    x = 156,274.85

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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.