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Finding the Fourth Proportional to 109,149.20, 163,627.80 and 73,974.80

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Solution

The fourth proportional to 109,149.20, 163,627.80 and 73,974.80 is: 110,897.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,149.20 : 163,627.80 = 73,974.80 : x
  2. Step 2: Convert to fraction form
    109,149.20/163,627.80 = 73,974.80/x
  3. Step 3: Cross multiply
    109,149.20x = 163,627.80 × 73,974.80
  4. Step 4: Simplify right side
    109,149.20x = 12,104,333,779.44
  5. Step 5: Solve for x
    x = 12,104,333,779.44/109,149.20
  6. Step 6: Final answer
    x = 110,897.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.