Home / 154,106.96-231,207.16-109,215.11

Finding the Fourth Proportional to 154,106.96, 231,207.16 and 109,215.11

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Solution

The fourth proportional to 154,106.96, 231,207.16 and 109,215.11 is: 163,855.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,106.96 : 231,207.16 = 109,215.11 : x
  2. Step 2: Convert to fraction form
    154,106.96/231,207.16 = 109,215.11/x
  3. Step 3: Cross multiply
    154,106.96x = 231,207.16 × 109,215.11
  4. Step 4: Simplify right side
    154,106.96x = 25,251,315,271.68
  5. Step 5: Solve for x
    x = 25,251,315,271.68/154,106.96
  6. Step 6: Final answer
    x = 163,855.78

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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.