Home / 159,970.20-220,757.04-87,372.75

Finding the Fourth Proportional to 159,970.20, 220,757.04 and 87,372.75

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Solution

The fourth proportional to 159,970.20, 220,757.04 and 87,372.75 is: 120,573.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,970.20 : 220,757.04 = 87,372.75 : x
  2. Step 2: Convert to fraction form
    159,970.20/220,757.04 = 87,372.75/x
  3. Step 3: Cross multiply
    159,970.20x = 220,757.04 × 87,372.75
  4. Step 4: Simplify right side
    159,970.20x = 19,288,149,666.66
  5. Step 5: Solve for x
    x = 19,288,149,666.66/159,970.20
  6. Step 6: Final answer
    x = 120,573.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.