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Finding the Fourth Proportional to 118,817.57, 163,987.71 and 67,832.43

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Solution

The fourth proportional to 118,817.57, 163,987.71 and 67,832.43 is: 93,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,817.57 : 163,987.71 = 67,832.43 : x
  2. Step 2: Convert to fraction form
    118,817.57/163,987.71 = 67,832.43/x
  3. Step 3: Cross multiply
    118,817.57x = 163,987.71 × 67,832.43
  4. Step 4: Simplify right side
    118,817.57x = 11,123,684,859.44
  5. Step 5: Solve for x
    x = 11,123,684,859.44/118,817.57
  6. Step 6: Final answer
    x = 93,619.86

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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.