Home / 131,833.44-181,928.70-71,402.58

Finding the Fourth Proportional to 131,833.44, 181,928.70 and 71,402.58

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Solution

The fourth proportional to 131,833.44, 181,928.70 and 71,402.58 is: 98,534.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,833.44 : 181,928.70 = 71,402.58 : x
  2. Step 2: Convert to fraction form
    131,833.44/181,928.70 = 71,402.58/x
  3. Step 3: Cross multiply
    131,833.44x = 181,928.70 × 71,402.58
  4. Step 4: Simplify right side
    131,833.44x = 12,990,178,556.05
  5. Step 5: Solve for x
    x = 12,990,178,556.05/131,833.44
  6. Step 6: Final answer
    x = 98,534.78

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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.