Home / 154,557.06-213,286.26-86,573.88

Finding the Fourth Proportional to 154,557.06, 213,286.26 and 86,573.88

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Solution

The fourth proportional to 154,557.06, 213,286.26 and 86,573.88 is: 119,470.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,557.06 : 213,286.26 = 86,573.88 : x
  2. Step 2: Convert to fraction form
    154,557.06/213,286.26 = 86,573.88/x
  3. Step 3: Cross multiply
    154,557.06x = 213,286.26 × 86,573.88
  4. Step 4: Simplify right side
    154,557.06x = 18,465,019,078.89
  5. Step 5: Solve for x
    x = 18,465,019,078.89/154,557.06
  6. Step 6: Final answer
    x = 119,470.56

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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.