Home / 135,660.10-203,490.15-109,416.10

Finding the Fourth Proportional to 135,660.10, 203,490.15 and 109,416.10

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Solution

The fourth proportional to 135,660.10, 203,490.15 and 109,416.10 is: 164,124.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,660.10 : 203,490.15 = 109,416.10 : x
  2. Step 2: Convert to fraction form
    135,660.10/203,490.15 = 109,416.10/x
  3. Step 3: Cross multiply
    135,660.10x = 203,490.15 × 109,416.10
  4. Step 4: Simplify right side
    135,660.10x = 22,265,098,601.42
  5. Step 5: Solve for x
    x = 22,265,098,601.42/135,660.10
  6. Step 6: Final answer
    x = 164,124.15

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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.