Home / 198,037.30-273,219.67-130,090.86

Finding the Fourth Proportional to 198,037.30, 273,219.67 and 130,090.86

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Solution

The fourth proportional to 198,037.30, 273,219.67 and 130,090.86 is: 179,478.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,037.30 : 273,219.67 = 130,090.86 : x
  2. Step 2: Convert to fraction form
    198,037.30/273,219.67 = 130,090.86/x
  3. Step 3: Cross multiply
    198,037.30x = 273,219.67 × 130,090.86
  4. Step 4: Simplify right side
    198,037.30x = 35,543,381,839.22
  5. Step 5: Solve for x
    x = 35,543,381,839.22/198,037.30
  6. Step 6: Final answer
    x = 179,478.22

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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.