Home / 143,606.24-215,440.43-43,763.79

Finding the Fourth Proportional to 143,606.24, 215,440.43 and 43,763.79

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Solution

The fourth proportional to 143,606.24, 215,440.43 and 43,763.79 is: 65,655.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,606.24 : 215,440.43 = 43,763.79 : x
  2. Step 2: Convert to fraction form
    143,606.24/215,440.43 = 43,763.79/x
  3. Step 3: Cross multiply
    143,606.24x = 215,440.43 × 43,763.79
  4. Step 4: Simplify right side
    143,606.24x = 9,428,489,517.21
  5. Step 5: Solve for x
    x = 9,428,489,517.21/143,606.24
  6. Step 6: Final answer
    x = 65,655.15

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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.