Home / 154,101.80-231,131.10-48,931.40

Finding the Fourth Proportional to 154,101.80, 231,131.10 and 48,931.40

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Solution

The fourth proportional to 154,101.80, 231,131.10 and 48,931.40 is: 73,390.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,101.80 : 231,131.10 = 48,931.40 : x
  2. Step 2: Convert to fraction form
    154,101.80/231,131.10 = 48,931.40/x
  3. Step 3: Cross multiply
    154,101.80x = 231,131.10 × 48,931.40
  4. Step 4: Simplify right side
    154,101.80x = 11,309,568,306.54
  5. Step 5: Solve for x
    x = 11,309,568,306.54/154,101.80
  6. Step 6: Final answer
    x = 73,390.24

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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.