Home / 131,934.54-181,970.04-82,890.42

Finding the Fourth Proportional to 131,934.54, 181,970.04 and 82,890.42

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Solution

The fourth proportional to 131,934.54, 181,970.04 and 82,890.42 is: 114,326.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,934.54 : 181,970.04 = 82,890.42 : x
  2. Step 2: Convert to fraction form
    131,934.54/181,970.04 = 82,890.42/x
  3. Step 3: Cross multiply
    131,934.54x = 181,970.04 × 82,890.42
  4. Step 4: Simplify right side
    131,934.54x = 15,083,573,043.02
  5. Step 5: Solve for x
    x = 15,083,573,043.02/131,934.54
  6. Step 6: Final answer
    x = 114,326.19

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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.