Home / 154,002.70-231,004.05-131,452.30

Finding the Fourth Proportional to 154,002.70, 231,004.05 and 131,452.30

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Solution

The fourth proportional to 154,002.70, 231,004.05 and 131,452.30 is: 197,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,002.70 : 231,004.05 = 131,452.30 : x
  2. Step 2: Convert to fraction form
    154,002.70/231,004.05 = 131,452.30/x
  3. Step 3: Cross multiply
    154,002.70x = 231,004.05 × 131,452.30
  4. Step 4: Simplify right side
    154,002.70x = 30,366,013,681.82
  5. Step 5: Solve for x
    x = 30,366,013,681.82/154,002.70
  6. Step 6: Final answer
    x = 197,178.45

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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.