Home / 131,797.19-181,872.92-78,087.17

Finding the Fourth Proportional to 131,797.19, 181,872.92 and 78,087.17

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Solution

The fourth proportional to 131,797.19, 181,872.92 and 78,087.17 is: 107,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,797.19 : 181,872.92 = 78,087.17 : x
  2. Step 2: Convert to fraction form
    131,797.19/181,872.92 = 78,087.17/x
  3. Step 3: Cross multiply
    131,797.19x = 181,872.92 × 78,087.17
  4. Step 4: Simplify right side
    131,797.19x = 14,201,940,322.64
  5. Step 5: Solve for x
    x = 14,201,940,322.64/131,797.19
  6. Step 6: Final answer
    x = 107,756.02

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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.