Home / 143,682.14-198,281.28-83,287.79

Finding the Fourth Proportional to 143,682.14, 198,281.28 and 83,287.79

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Solution

The fourth proportional to 143,682.14, 198,281.28 and 83,287.79 is: 114,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,682.14 : 198,281.28 = 83,287.79 : x
  2. Step 2: Convert to fraction form
    143,682.14/198,281.28 = 83,287.79/x
  3. Step 3: Cross multiply
    143,682.14x = 198,281.28 × 83,287.79
  4. Step 4: Simplify right side
    143,682.14x = 16,514,409,609.57
  5. Step 5: Solve for x
    x = 16,514,409,609.57/143,682.14
  6. Step 6: Final answer
    x = 114,937.11

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1.5x scale

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.