Home / 107,420.22-161,118.99-28,542.42

Finding the Fourth Proportional to 107,420.22, 161,118.99 and 28,542.42

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Solution

The fourth proportional to 107,420.22, 161,118.99 and 28,542.42 is: 42,810.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,420.22 : 161,118.99 = 28,542.42 : x
  2. Step 2: Convert to fraction form
    107,420.22/161,118.99 = 28,542.42/x
  3. Step 3: Cross multiply
    107,420.22x = 161,118.99 × 28,542.42
  4. Step 4: Simplify right side
    107,420.22x = 4,598,725,882.56
  5. Step 5: Solve for x
    x = 4,598,725,882.56/107,420.22
  6. Step 6: Final answer
    x = 42,810.62

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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.