Home / 143,613.25-215,419.74-64,635.19

Finding the Fourth Proportional to 143,613.25, 215,419.74 and 64,635.19

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Solution

The fourth proportional to 143,613.25, 215,419.74 and 64,635.19 is: 96,952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,613.25 : 215,419.74 = 64,635.19 : x
  2. Step 2: Convert to fraction form
    143,613.25/215,419.74 = 64,635.19/x
  3. Step 3: Cross multiply
    143,613.25x = 215,419.74 × 64,635.19
  4. Step 4: Simplify right side
    143,613.25x = 13,923,695,824.65
  5. Step 5: Solve for x
    x = 13,923,695,824.65/143,613.25
  6. Step 6: Final answer
    x = 96,952.72

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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.