Home / 131,713.80-181,716.12-83,956.20

Finding the Fourth Proportional to 131,713.80, 181,716.12 and 83,956.20

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Solution

The fourth proportional to 131,713.80, 181,716.12 and 83,956.20 is: 115,828.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,713.80 : 181,716.12 = 83,956.20 : x
  2. Step 2: Convert to fraction form
    131,713.80/181,716.12 = 83,956.20/x
  3. Step 3: Cross multiply
    131,713.80x = 181,716.12 × 83,956.20
  4. Step 4: Simplify right side
    131,713.80x = 15,256,194,913.94
  5. Step 5: Solve for x
    x = 15,256,194,913.94/131,713.80
  6. Step 6: Final answer
    x = 115,828.37

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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.