Home / 230,019.90-317,436.75-128,049.54

Finding the Fourth Proportional to 230,019.90, 317,436.75 and 128,049.54

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Solution

The fourth proportional to 230,019.90, 317,436.75 and 128,049.54 is: 176,713.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,019.90 : 317,436.75 = 128,049.54 : x
  2. Step 2: Convert to fraction form
    230,019.90/317,436.75 = 128,049.54/x
  3. Step 3: Cross multiply
    230,019.90x = 317,436.75 × 128,049.54
  4. Step 4: Simplify right side
    230,019.90x = 40,647,629,816.60
  5. Step 5: Solve for x
    x = 40,647,629,816.60/230,019.90
  6. Step 6: Final answer
    x = 176,713.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.