Home / 131,890.54-182,021.97-75,310.42

Finding the Fourth Proportional to 131,890.54, 182,021.97 and 75,310.42

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Solution

The fourth proportional to 131,890.54, 182,021.97 and 75,310.42 is: 103,935.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,890.54 : 182,021.97 = 75,310.42 : x
  2. Step 2: Convert to fraction form
    131,890.54/182,021.97 = 75,310.42/x
  3. Step 3: Cross multiply
    131,890.54x = 182,021.97 × 75,310.42
  4. Step 4: Simplify right side
    131,890.54x = 13,708,151,009.93
  5. Step 5: Solve for x
    x = 13,708,151,009.93/131,890.54
  6. Step 6: Final answer
    x = 103,935.82

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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.