Home / 142,546.12-196,700.26-85,174

Finding the Fourth Proportional to 142,546.12, 196,700.26 and 85,174

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Solution

The fourth proportional to 142,546.12, 196,700.26 and 85,174 is: 117,532.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,546.12 : 196,700.26 = 85,174 : x
  2. Step 2: Convert to fraction form
    142,546.12/196,700.26 = 85,174/x
  3. Step 3: Cross multiply
    142,546.12x = 196,700.26 × 85,174
  4. Step 4: Simplify right side
    142,546.12x = 16,753,747,945.24
  5. Step 5: Solve for x
    x = 16,753,747,945.24/142,546.12
  6. Step 6: Final answer
    x = 117,532.12

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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.