Home / 120,699.33-166,554.08-71,632.49

Finding the Fourth Proportional to 120,699.33, 166,554.08 and 71,632.49

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Solution

The fourth proportional to 120,699.33, 166,554.08 and 71,632.49 is: 98,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,699.33 : 166,554.08 = 71,632.49 : x
  2. Step 2: Convert to fraction form
    120,699.33/166,554.08 = 71,632.49/x
  3. Step 3: Cross multiply
    120,699.33x = 166,554.08 × 71,632.49
  4. Step 4: Simplify right side
    120,699.33x = 11,930,682,279.13
  5. Step 5: Solve for x
    x = 11,930,682,279.13/120,699.33
  6. Step 6: Final answer
    x = 98,846.30

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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.