Home / 142,909.04-197,169.04-82,471.68

Finding the Fourth Proportional to 142,909.04, 197,169.04 and 82,471.68

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Solution

The fourth proportional to 142,909.04, 197,169.04 and 82,471.68 is: 113,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,909.04 : 197,169.04 = 82,471.68 : x
  2. Step 2: Convert to fraction form
    142,909.04/197,169.04 = 82,471.68/x
  3. Step 3: Cross multiply
    142,909.04x = 197,169.04 × 82,471.68
  4. Step 4: Simplify right side
    142,909.04x = 16,260,861,972.79
  5. Step 5: Solve for x
    x = 16,260,861,972.79/142,909.04
  6. Step 6: Final answer
    x = 113,784.70

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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.