Home / 142,904.81-197,224.89-82,491.66

Finding the Fourth Proportional to 142,904.81, 197,224.89 and 82,491.66

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Solution

The fourth proportional to 142,904.81, 197,224.89 and 82,491.66 is: 113,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,904.81 : 197,224.89 = 82,491.66 : x
  2. Step 2: Convert to fraction form
    142,904.81/197,224.89 = 82,491.66/x
  3. Step 3: Cross multiply
    142,904.81x = 197,224.89 × 82,491.66
  4. Step 4: Simplify right side
    142,904.81x = 16,269,408,569.42
  5. Step 5: Solve for x
    x = 16,269,408,569.42/142,904.81
  6. Step 6: Final answer
    x = 113,847.88

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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.