Home / 120,549.48-166,310.82-75,201

Finding the Fourth Proportional to 120,549.48, 166,310.82 and 75,201

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Solution

The fourth proportional to 120,549.48, 166,310.82 and 75,201 is: 103,747.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,549.48 : 166,310.82 = 75,201 : x
  2. Step 2: Convert to fraction form
    120,549.48/166,310.82 = 75,201/x
  3. Step 3: Cross multiply
    120,549.48x = 166,310.82 × 75,201
  4. Step 4: Simplify right side
    120,549.48x = 12,506,739,974.82
  5. Step 5: Solve for x
    x = 12,506,739,974.82/120,549.48
  6. Step 6: Final answer
    x = 103,747.77

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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.