Home / 154,079.40-231,119.10-133,084.20

Finding the Fourth Proportional to 154,079.40, 231,119.10 and 133,084.20

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Solution

The fourth proportional to 154,079.40, 231,119.10 and 133,084.20 is: 199,626.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,079.40 : 231,119.10 = 133,084.20 : x
  2. Step 2: Convert to fraction form
    154,079.40/231,119.10 = 133,084.20/x
  3. Step 3: Cross multiply
    154,079.40x = 231,119.10 × 133,084.20
  4. Step 4: Simplify right side
    154,079.40x = 30,758,300,528.22
  5. Step 5: Solve for x
    x = 30,758,300,528.22/154,079.40
  6. Step 6: Final answer
    x = 199,626.30

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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.