Home / 143,888.28-198,585.36-82,658.40

Finding the Fourth Proportional to 143,888.28, 198,585.36 and 82,658.40

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Solution

The fourth proportional to 143,888.28, 198,585.36 and 82,658.40 is: 114,079.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,888.28 : 198,585.36 = 82,658.40 : x
  2. Step 2: Convert to fraction form
    143,888.28/198,585.36 = 82,658.40/x
  3. Step 3: Cross multiply
    143,888.28x = 198,585.36 × 82,658.40
  4. Step 4: Simplify right side
    143,888.28x = 16,414,748,121.02
  5. Step 5: Solve for x
    x = 16,414,748,121.02/143,888.28
  6. Step 6: Final answer
    x = 114,079.81

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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.