Home / 154,189.80-230,823.90-91,828.20

Finding the Fourth Proportional to 154,189.80, 230,823.90 and 91,828.20

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Solution

The fourth proportional to 154,189.80, 230,823.90 and 91,828.20 is: 137,467.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,189.80 : 230,823.90 = 91,828.20 : x
  2. Step 2: Convert to fraction form
    154,189.80/230,823.90 = 91,828.20/x
  3. Step 3: Cross multiply
    154,189.80x = 230,823.90 × 91,828.20
  4. Step 4: Simplify right side
    154,189.80x = 21,196,143,253.98
  5. Step 5: Solve for x
    x = 21,196,143,253.98/154,189.80
  6. Step 6: Final answer
    x = 137,467.87

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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.