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Finding the Fourth Proportional to 154,555.40, 231,986.70 and 75,758.60

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Solution

The fourth proportional to 154,555.40, 231,986.70 and 75,758.60 is: 113,713.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,555.40 : 231,986.70 = 75,758.60 : x
  2. Step 2: Convert to fraction form
    154,555.40/231,986.70 = 75,758.60/x
  3. Step 3: Cross multiply
    154,555.40x = 231,986.70 × 75,758.60
  4. Step 4: Simplify right side
    154,555.40x = 17,574,987,610.62
  5. Step 5: Solve for x
    x = 17,574,987,610.62/154,555.40
  6. Step 6: Final answer
    x = 113,713.19

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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.