Home / 197,865.12-296,686.68-85,475.16

Finding the Fourth Proportional to 197,865.12, 296,686.68 and 85,475.16

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Solution

The fourth proportional to 197,865.12, 296,686.68 and 85,475.16 is: 128,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,865.12 : 296,686.68 = 85,475.16 : x
  2. Step 2: Convert to fraction form
    197,865.12/296,686.68 = 85,475.16/x
  3. Step 3: Cross multiply
    197,865.12x = 296,686.68 × 85,475.16
  4. Step 4: Simplify right side
    197,865.12x = 25,359,341,442.87
  5. Step 5: Solve for x
    x = 25,359,341,442.87/197,865.12
  6. Step 6: Final answer
    x = 128,164.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.