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Finding the Fourth Proportional to 135,648.10, 203,472.15 and 109,404.10

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Solution

The fourth proportional to 135,648.10, 203,472.15 and 109,404.10 is: 164,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,648.10 : 203,472.15 = 109,404.10 : x
  2. Step 2: Convert to fraction form
    135,648.10/203,472.15 = 109,404.10/x
  3. Step 3: Cross multiply
    135,648.10x = 203,472.15 × 109,404.10
  4. Step 4: Simplify right side
    135,648.10x = 22,260,687,445.82
  5. Step 5: Solve for x
    x = 22,260,687,445.82/135,648.10
  6. Step 6: Final answer
    x = 164,106.15

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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.