Home / 89,241.12-133,598.68-78,169.44

Finding the Fourth Proportional to 89,241.12, 133,598.68 and 78,169.44

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Solution

The fourth proportional to 89,241.12, 133,598.68 and 78,169.44 is: 117,023.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,241.12 : 133,598.68 = 78,169.44 : x
  2. Step 2: Convert to fraction form
    89,241.12/133,598.68 = 78,169.44/x
  3. Step 3: Cross multiply
    89,241.12x = 133,598.68 × 78,169.44
  4. Step 4: Simplify right side
    89,241.12x = 10,443,334,000.34
  5. Step 5: Solve for x
    x = 10,443,334,000.34/89,241.12
  6. Step 6: Final answer
    x = 117,023.79

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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.