Home / 154,048.80-231,073.20-131,930.40

Finding the Fourth Proportional to 154,048.80, 231,073.20 and 131,930.40

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Solution

The fourth proportional to 154,048.80, 231,073.20 and 131,930.40 is: 197,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,048.80 : 231,073.20 = 131,930.40 : x
  2. Step 2: Convert to fraction form
    154,048.80/231,073.20 = 131,930.40/x
  3. Step 3: Cross multiply
    154,048.80x = 231,073.20 × 131,930.40
  4. Step 4: Simplify right side
    154,048.80x = 30,485,579,705.28
  5. Step 5: Solve for x
    x = 30,485,579,705.28/154,048.80
  6. Step 6: Final answer
    x = 197,895.60

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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.