Home / 143,167.20-197,577.30-79,505.28

Finding the Fourth Proportional to 143,167.20, 197,577.30 and 79,505.28

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Solution

The fourth proportional to 143,167.20, 197,577.30 and 79,505.28 is: 109,720.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,167.20 : 197,577.30 = 79,505.28 : x
  2. Step 2: Convert to fraction form
    143,167.20/197,577.30 = 79,505.28/x
  3. Step 3: Cross multiply
    143,167.20x = 197,577.30 × 79,505.28
  4. Step 4: Simplify right side
    143,167.20x = 15,708,438,558.14
  5. Step 5: Solve for x
    x = 15,708,438,558.14/143,167.20
  6. Step 6: Final answer
    x = 109,720.93

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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.