Home / 142,156.35-196,104.87-84,755.18

Finding the Fourth Proportional to 142,156.35, 196,104.87 and 84,755.18

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Solution

The fourth proportional to 142,156.35, 196,104.87 and 84,755.18 is: 116,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,156.35 : 196,104.87 = 84,755.18 : x
  2. Step 2: Convert to fraction form
    142,156.35/196,104.87 = 84,755.18/x
  3. Step 3: Cross multiply
    142,156.35x = 196,104.87 × 84,755.18
  4. Step 4: Simplify right side
    142,156.35x = 16,620,904,045.99
  5. Step 5: Solve for x
    x = 16,620,904,045.99/142,156.35
  6. Step 6: Final answer
    x = 116,919.88

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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.