Home / 143,571.65-215,388.23-43,739.88

Finding the Fourth Proportional to 143,571.65, 215,388.23 and 43,739.88

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Solution

The fourth proportional to 143,571.65, 215,388.23 and 43,739.88 is: 65,619.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,571.65 : 215,388.23 = 43,739.88 : x
  2. Step 2: Convert to fraction form
    143,571.65/215,388.23 = 43,739.88/x
  3. Step 3: Cross multiply
    143,571.65x = 215,388.23 × 43,739.88
  4. Step 4: Simplify right side
    143,571.65x = 9,421,055,114.91
  5. Step 5: Solve for x
    x = 9,421,055,114.91/143,571.65
  6. Step 6: Final answer
    x = 65,619.19

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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.