Home / 140,309.26-210,516.17-84,189.65

Finding the Fourth Proportional to 140,309.26, 210,516.17 and 84,189.65

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Solution

The fourth proportional to 140,309.26, 210,516.17 and 84,189.65 is: 126,315.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,309.26 : 210,516.17 = 84,189.65 : x
  2. Step 2: Convert to fraction form
    140,309.26/210,516.17 = 84,189.65/x
  3. Step 3: Cross multiply
    140,309.26x = 210,516.17 × 84,189.65
  4. Step 4: Simplify right side
    140,309.26x = 17,723,281,198.11
  5. Step 5: Solve for x
    x = 17,723,281,198.11/140,309.26
  6. Step 6: Final answer
    x = 126,315.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.