Home / 120,193.62-165,901.68-79,387.58

Finding the Fourth Proportional to 120,193.62, 165,901.68 and 79,387.58

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Solution

The fourth proportional to 120,193.62, 165,901.68 and 79,387.58 is: 109,577.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,193.62 : 165,901.68 = 79,387.58 : x
  2. Step 2: Convert to fraction form
    120,193.62/165,901.68 = 79,387.58/x
  3. Step 3: Cross multiply
    120,193.62x = 165,901.68 × 79,387.58
  4. Step 4: Simplify right side
    120,193.62x = 13,170,532,063.63
  5. Step 5: Solve for x
    x = 13,170,532,063.63/120,193.62
  6. Step 6: Final answer
    x = 109,577.63

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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.