Home / 143,626.12-215,367.01-83,674.37

Finding the Fourth Proportional to 143,626.12, 215,367.01 and 83,674.37

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Solution

The fourth proportional to 143,626.12, 215,367.01 and 83,674.37 is: 125,469.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,626.12 : 215,367.01 = 83,674.37 : x
  2. Step 2: Convert to fraction form
    143,626.12/215,367.01 = 83,674.37/x
  3. Step 3: Cross multiply
    143,626.12x = 215,367.01 × 83,674.37
  4. Step 4: Simplify right side
    143,626.12x = 18,020,699,209.77
  5. Step 5: Solve for x
    x = 18,020,699,209.77/143,626.12
  6. Step 6: Final answer
    x = 125,469.51

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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.