Home / 143,744.40-215,616.63-43,899.21

Finding the Fourth Proportional to 143,744.40, 215,616.63 and 43,899.21

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Solution

The fourth proportional to 143,744.40, 215,616.63 and 43,899.21 is: 65,848.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,744.40 : 215,616.63 = 43,899.21 : x
  2. Step 2: Convert to fraction form
    143,744.40/215,616.63 = 43,899.21/x
  3. Step 3: Cross multiply
    143,744.40x = 215,616.63 × 43,899.21
  4. Step 4: Simplify right side
    143,744.40x = 9,465,399,719.86
  5. Step 5: Solve for x
    x = 9,465,399,719.86/143,744.40
  6. Step 6: Final answer
    x = 65,848.82

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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.