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Finding the Fourth Proportional to 142,097.00, 196,101.95 and 84,721.05

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Solution

The fourth proportional to 142,097.00, 196,101.95 and 84,721.05 is: 116,919.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,097.00 : 196,101.95 = 84,721.05 : x
  2. Step 2: Convert to fraction form
    142,097.00/196,101.95 = 84,721.05/x
  3. Step 3: Cross multiply
    142,097.00x = 196,101.95 × 84,721.05
  4. Step 4: Simplify right side
    142,097.00x = 16,613,962,687.44
  5. Step 5: Solve for x
    x = 16,613,962,687.44/142,097.00
  6. Step 6: Final answer
    x = 116,919.87

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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.