Home / 257,237.14-385,912.09-86,452.73

Finding the Fourth Proportional to 257,237.14, 385,912.09 and 86,452.73

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Solution

The fourth proportional to 257,237.14, 385,912.09 and 86,452.73 is: 129,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,237.14 : 385,912.09 = 86,452.73 : x
  2. Step 2: Convert to fraction form
    257,237.14/385,912.09 = 86,452.73/x
  3. Step 3: Cross multiply
    257,237.14x = 385,912.09 × 86,452.73
  4. Step 4: Simplify right side
    257,237.14x = 33,363,153,720.51
  5. Step 5: Solve for x
    x = 33,363,153,720.51/257,237.14
  6. Step 6: Final answer
    x = 129,698.05

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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.