Home / 142,396.28-196,502.04-81,958.54

Finding the Fourth Proportional to 142,396.28, 196,502.04 and 81,958.54

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Solution

The fourth proportional to 142,396.28, 196,502.04 and 81,958.54 is: 113,100.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,396.28 : 196,502.04 = 81,958.54 : x
  2. Step 2: Convert to fraction form
    142,396.28/196,502.04 = 81,958.54/x
  3. Step 3: Cross multiply
    142,396.28x = 196,502.04 × 81,958.54
  4. Step 4: Simplify right side
    142,396.28x = 16,105,020,305.42
  5. Step 5: Solve for x
    x = 16,105,020,305.42/142,396.28
  6. Step 6: Final answer
    x = 113,100.01

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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.