Home / 143,589.28-215,476.08-69,676.96

Finding the Fourth Proportional to 143,589.28, 215,476.08 and 69,676.96

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Solution

The fourth proportional to 143,589.28, 215,476.08 and 69,676.96 is: 104,560.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,589.28 : 215,476.08 = 69,676.96 : x
  2. Step 2: Convert to fraction form
    143,589.28/215,476.08 = 69,676.96/x
  3. Step 3: Cross multiply
    143,589.28x = 215,476.08 × 69,676.96
  4. Step 4: Simplify right side
    143,589.28x = 15,013,718,207.12
  5. Step 5: Solve for x
    x = 15,013,718,207.12/143,589.28
  6. Step 6: Final answer
    x = 104,560.16

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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.