Home / 84,799.68-126,594.48-84,212.16

Finding the Fourth Proportional to 84,799.68, 126,594.48 and 84,212.16

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Solution

The fourth proportional to 84,799.68, 126,594.48 and 84,212.16 is: 125,717.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,799.68 : 126,594.48 = 84,212.16 : x
  2. Step 2: Convert to fraction form
    84,799.68/126,594.48 = 84,212.16/x
  3. Step 3: Cross multiply
    84,799.68x = 126,594.48 × 84,212.16
  4. Step 4: Simplify right side
    84,799.68x = 10,660,794,604.88
  5. Step 5: Solve for x
    x = 10,660,794,604.88/84,799.68
  6. Step 6: Final answer
    x = 125,717.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.