Home / 143,430.01-215,144.97-43,589.86

Finding the Fourth Proportional to 143,430.01, 215,144.97 and 43,589.86

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Solution

The fourth proportional to 143,430.01, 215,144.97 and 43,589.86 is: 65,384.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,430.01 : 215,144.97 = 43,589.86 : x
  2. Step 2: Convert to fraction form
    143,430.01/215,144.97 = 43,589.86/x
  3. Step 3: Cross multiply
    143,430.01x = 215,144.97 × 43,589.86
  4. Step 4: Simplify right side
    143,430.01x = 9,378,139,122.00
  5. Step 5: Solve for x
    x = 9,378,139,122.00/143,430.01
  6. Step 6: Final answer
    x = 65,384.78

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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.