Home / 154,071.40-231,107.10-133,076.20

Finding the Fourth Proportional to 154,071.40, 231,107.10 and 133,076.20

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Solution

The fourth proportional to 154,071.40, 231,107.10 and 133,076.20 is: 199,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,071.40 : 231,107.10 = 133,076.20 : x
  2. Step 2: Convert to fraction form
    154,071.40/231,107.10 = 133,076.20/x
  3. Step 3: Cross multiply
    154,071.40x = 231,107.10 × 133,076.20
  4. Step 4: Simplify right side
    154,071.40x = 30,754,854,661.02
  5. Step 5: Solve for x
    x = 30,754,854,661.02/154,071.40
  6. Step 6: Final answer
    x = 199,614.30

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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.