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Finding the Fourth Proportional to 148,291, 204,641.58 and 81,224.44

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Solution

The fourth proportional to 148,291, 204,641.58 and 81,224.44 is: 112,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,291 : 204,641.58 = 81,224.44 : x
  2. Step 2: Convert to fraction form
    148,291/204,641.58 = 81,224.44/x
  3. Step 3: Cross multiply
    148,291x = 204,641.58 × 81,224.44
  4. Step 4: Simplify right side
    148,291x = 16,621,897,736.22
  5. Step 5: Solve for x
    x = 16,621,897,736.22/148,291
  6. Step 6: Final answer
    x = 112,089.73

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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.