Home / 131,859.91-181,955.86-74,504.22

Finding the Fourth Proportional to 131,859.91, 181,955.86 and 74,504.22

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Solution

The fourth proportional to 131,859.91, 181,955.86 and 74,504.22 is: 102,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,859.91 : 181,955.86 = 74,504.22 : x
  2. Step 2: Convert to fraction form
    131,859.91/181,955.86 = 74,504.22/x
  3. Step 3: Cross multiply
    131,859.91x = 181,955.86 × 74,504.22
  4. Step 4: Simplify right side
    131,859.91x = 13,556,479,423.73
  5. Step 5: Solve for x
    x = 13,556,479,423.73/131,859.91
  6. Step 6: Final answer
    x = 102,809.71

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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.