Home / 120,664.99-166,532.93-79,306.93

Finding the Fourth Proportional to 120,664.99, 166,532.93 and 79,306.93

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Solution

The fourth proportional to 120,664.99, 166,532.93 and 79,306.93 is: 109,453.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,664.99 : 166,532.93 = 79,306.93 : x
  2. Step 2: Convert to fraction form
    120,664.99/166,532.93 = 79,306.93/x
  3. Step 3: Cross multiply
    120,664.99x = 166,532.93 × 79,306.93
  4. Step 4: Simplify right side
    120,664.99x = 13,207,215,422.20
  5. Step 5: Solve for x
    x = 13,207,215,422.20/120,664.99
  6. Step 6: Final answer
    x = 109,453.58

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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.