Home / 198,100.46-273,312.15-113,157.38

Finding the Fourth Proportional to 198,100.46, 273,312.15 and 113,157.38

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Solution

The fourth proportional to 198,100.46, 273,312.15 and 113,157.38 is: 156,119.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,100.46 : 273,312.15 = 113,157.38 : x
  2. Step 2: Convert to fraction form
    198,100.46/273,312.15 = 113,157.38/x
  3. Step 3: Cross multiply
    198,100.46x = 273,312.15 × 113,157.38
  4. Step 4: Simplify right side
    198,100.46x = 30,927,286,816.17
  5. Step 5: Solve for x
    x = 30,927,286,816.17/198,100.46
  6. Step 6: Final answer
    x = 156,119.21

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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.