Home / 87,664.32-131,463.63-69,162.30

Finding the Fourth Proportional to 87,664.32, 131,463.63 and 69,162.30

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Solution

The fourth proportional to 87,664.32, 131,463.63 and 69,162.30 is: 103,717.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,664.32 : 131,463.63 = 69,162.30 : x
  2. Step 2: Convert to fraction form
    87,664.32/131,463.63 = 69,162.30/x
  3. Step 3: Cross multiply
    87,664.32x = 131,463.63 × 69,162.30
  4. Step 4: Simplify right side
    87,664.32x = 9,092,327,017.15
  5. Step 5: Solve for x
    x = 9,092,327,017.15/87,664.32
  6. Step 6: Final answer
    x = 103,717.53

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1.5x scale

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.