Home / 142,680.16-196,854.15-82,242.64

Finding the Fourth Proportional to 142,680.16, 196,854.15 and 82,242.64

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Solution

The fourth proportional to 142,680.16, 196,854.15 and 82,242.64 is: 113,469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,680.16 : 196,854.15 = 82,242.64 : x
  2. Step 2: Convert to fraction form
    142,680.16/196,854.15 = 82,242.64/x
  3. Step 3: Cross multiply
    142,680.16x = 196,854.15 × 82,242.64
  4. Step 4: Simplify right side
    142,680.16x = 16,189,804,990.96
  5. Step 5: Solve for x
    x = 16,189,804,990.96/142,680.16
  6. Step 6: Final answer
    x = 113,469.21

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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.