Home / 118,257.57-163,194.21-64,542.15

Finding the Fourth Proportional to 118,257.57, 163,194.21 and 64,542.15

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Solution

The fourth proportional to 118,257.57, 163,194.21 and 64,542.15 is: 89,067.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,257.57 : 163,194.21 = 64,542.15 : x
  2. Step 2: Convert to fraction form
    118,257.57/163,194.21 = 64,542.15/x
  3. Step 3: Cross multiply
    118,257.57x = 163,194.21 × 64,542.15
  4. Step 4: Simplify right side
    118,257.57x = 10,532,905,180.95
  5. Step 5: Solve for x
    x = 10,532,905,180.95/118,257.57
  6. Step 6: Final answer
    x = 89,067.49

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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.