Home / 83,176.88-114,905.52-71,979.44

Finding the Fourth Proportional to 83,176.88, 114,905.52 and 71,979.44

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Solution

The fourth proportional to 83,176.88, 114,905.52 and 71,979.44 is: 99,436.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,176.88 : 114,905.52 = 71,979.44 : x
  2. Step 2: Convert to fraction form
    83,176.88/114,905.52 = 71,979.44/x
  3. Step 3: Cross multiply
    83,176.88x = 114,905.52 × 71,979.44
  4. Step 4: Simplify right side
    83,176.88x = 8,270,834,982.51
  5. Step 5: Solve for x
    x = 8,270,834,982.51/83,176.88
  6. Step 6: Final answer
    x = 99,436.71

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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.