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Finding the Fourth Proportional to 118,267, 163,208.46 and 80,607.04

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Solution

The fourth proportional to 118,267, 163,208.46 and 80,607.04 is: 111,237.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,267 : 163,208.46 = 80,607.04 : x
  2. Step 2: Convert to fraction form
    118,267/163,208.46 = 80,607.04/x
  3. Step 3: Cross multiply
    118,267x = 163,208.46 × 80,607.04
  4. Step 4: Simplify right side
    118,267x = 13,155,750,863.56
  5. Step 5: Solve for x
    x = 13,155,750,863.56/118,267
  6. Step 6: Final answer
    x = 111,237.72

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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.