Home / 87,346.85-131,020.28-69,734.21

Finding the Fourth Proportional to 87,346.85, 131,020.28 and 69,734.21

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Solution

The fourth proportional to 87,346.85, 131,020.28 and 69,734.21 is: 104,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,346.85 : 131,020.28 = 69,734.21 : x
  2. Step 2: Convert to fraction form
    87,346.85/131,020.28 = 69,734.21/x
  3. Step 3: Cross multiply
    87,346.85x = 131,020.28 × 69,734.21
  4. Step 4: Simplify right side
    87,346.85x = 9,136,594,977.51
  5. Step 5: Solve for x
    x = 9,136,594,977.51/87,346.85
  6. Step 6: Final answer
    x = 104,601.32

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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.