Home / 142,568.17-196,722.12-82,127

Finding the Fourth Proportional to 142,568.17, 196,722.12 and 82,127

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Solution

The fourth proportional to 142,568.17, 196,722.12 and 82,127 is: 113,322.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,568.17 : 196,722.12 = 82,127 : x
  2. Step 2: Convert to fraction form
    142,568.17/196,722.12 = 82,127/x
  3. Step 3: Cross multiply
    142,568.17x = 196,722.12 × 82,127
  4. Step 4: Simplify right side
    142,568.17x = 16,156,197,549.24
  5. Step 5: Solve for x
    x = 16,156,197,549.24/142,568.17
  6. Step 6: Final answer
    x = 113,322.62

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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.