Home / 84,190.79-126,556.83-67,733.61

Finding the Fourth Proportional to 84,190.79, 126,556.83 and 67,733.61

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Solution

The fourth proportional to 84,190.79, 126,556.83 and 67,733.61 is: 101,818.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,190.79 : 126,556.83 = 67,733.61 : x
  2. Step 2: Convert to fraction form
    84,190.79/126,556.83 = 67,733.61/x
  3. Step 3: Cross multiply
    84,190.79x = 126,556.83 × 67,733.61
  4. Step 4: Simplify right side
    84,190.79x = 8,572,150,966.06
  5. Step 5: Solve for x
    x = 8,572,150,966.06/84,190.79
  6. Step 6: Final answer
    x = 101,818.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.