Home / 131,211.29-181,087.52-73,872.09

Finding the Fourth Proportional to 131,211.29, 181,087.52 and 73,872.09

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Solution

The fourth proportional to 131,211.29, 181,087.52 and 73,872.09 is: 101,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,211.29 : 181,087.52 = 73,872.09 : x
  2. Step 2: Convert to fraction form
    131,211.29/181,087.52 = 73,872.09/x
  3. Step 3: Cross multiply
    131,211.29x = 181,087.52 × 73,872.09
  4. Step 4: Simplify right side
    131,211.29x = 13,377,313,205.96
  5. Step 5: Solve for x
    x = 13,377,313,205.96/131,211.29
  6. Step 6: Final answer
    x = 101,952.45

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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.