Home / 143,178.80-197,498.40-92,174.72

Finding the Fourth Proportional to 143,178.80, 197,498.40 and 92,174.72

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Solution

The fourth proportional to 143,178.80, 197,498.40 and 92,174.72 is: 127,144.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,178.80 : 197,498.40 = 92,174.72 : x
  2. Step 2: Convert to fraction form
    143,178.80/197,498.40 = 92,174.72/x
  3. Step 3: Cross multiply
    143,178.80x = 197,498.40 × 92,174.72
  4. Step 4: Simplify right side
    143,178.80x = 18,204,359,720.45
  5. Step 5: Solve for x
    x = 18,204,359,720.45/143,178.80
  6. Step 6: Final answer
    x = 127,144.24

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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.