Home / 112,799.52-155,663.37-67,479.44

Finding the Fourth Proportional to 112,799.52, 155,663.37 and 67,479.44

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Solution

The fourth proportional to 112,799.52, 155,663.37 and 67,479.44 is: 93,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,799.52 : 155,663.37 = 67,479.44 : x
  2. Step 2: Convert to fraction form
    112,799.52/155,663.37 = 67,479.44/x
  3. Step 3: Cross multiply
    112,799.52x = 155,663.37 × 67,479.44
  4. Step 4: Simplify right side
    112,799.52x = 10,504,076,257.80
  5. Step 5: Solve for x
    x = 10,504,076,257.80/112,799.52
  6. Step 6: Final answer
    x = 93,121.64

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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.