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Finding the Fourth Proportional to 148,366.08, 204,745.32 and 81,298.08

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Solution

The fourth proportional to 148,366.08, 204,745.32 and 81,298.08 is: 112,191.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,366.08 : 204,745.32 = 81,298.08 : x
  2. Step 2: Convert to fraction form
    148,366.08/204,745.32 = 81,298.08/x
  3. Step 3: Cross multiply
    148,366.08x = 204,745.32 × 81,298.08
  4. Step 4: Simplify right side
    148,366.08x = 16,645,401,404.99
  5. Step 5: Solve for x
    x = 16,645,401,404.99/148,366.08
  6. Step 6: Final answer
    x = 112,191.42

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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.