Home / 131,908.50-182,282.14-100,018.26

Finding the Fourth Proportional to 131,908.50, 182,282.14 and 100,018.26

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Solution

The fourth proportional to 131,908.50, 182,282.14 and 100,018.26 is: 138,213.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,908.50 : 182,282.14 = 100,018.26 : x
  2. Step 2: Convert to fraction form
    131,908.50/182,282.14 = 100,018.26/x
  3. Step 3: Cross multiply
    131,908.50x = 182,282.14 × 100,018.26
  4. Step 4: Simplify right side
    131,908.50x = 18,231,542,471.88
  5. Step 5: Solve for x
    x = 18,231,542,471.88/131,908.50
  6. Step 6: Final answer
    x = 138,213.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.