Home / 257,134.23-385,697.24-70,145.73

Finding the Fourth Proportional to 257,134.23, 385,697.24 and 70,145.73

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Solution

The fourth proportional to 257,134.23, 385,697.24 and 70,145.73 is: 105,217.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,134.23 : 385,697.24 = 70,145.73 : x
  2. Step 2: Convert to fraction form
    257,134.23/385,697.24 = 70,145.73/x
  3. Step 3: Cross multiply
    257,134.23x = 385,697.24 × 70,145.73
  4. Step 4: Simplify right side
    257,134.23x = 27,055,014,765.67
  5. Step 5: Solve for x
    x = 27,055,014,765.67/257,134.23
  6. Step 6: Final answer
    x = 105,217.48

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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.