Home / 107,507.45-161,265.28-54,855.43

Finding the Fourth Proportional to 107,507.45, 161,265.28 and 54,855.43

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Solution

The fourth proportional to 107,507.45, 161,265.28 and 54,855.43 is: 82,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,507.45 : 161,265.28 = 54,855.43 : x
  2. Step 2: Convert to fraction form
    107,507.45/161,265.28 = 54,855.43/x
  3. Step 3: Cross multiply
    107,507.45x = 161,265.28 × 54,855.43
  4. Step 4: Simplify right side
    107,507.45x = 8,846,275,841.02
  5. Step 5: Solve for x
    x = 8,846,275,841.02/107,507.45
  6. Step 6: Final answer
    x = 82,285.23

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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.