Home / 102,106.82-152,890.22-79,964.66

Finding the Fourth Proportional to 102,106.82, 152,890.22 and 79,964.66

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Solution

The fourth proportional to 102,106.82, 152,890.22 and 79,964.66 is: 119,735.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,106.82 : 152,890.22 = 79,964.66 : x
  2. Step 2: Convert to fraction form
    102,106.82/152,890.22 = 79,964.66/x
  3. Step 3: Cross multiply
    102,106.82x = 152,890.22 × 79,964.66
  4. Step 4: Simplify right side
    102,106.82x = 12,225,814,459.63
  5. Step 5: Solve for x
    x = 12,225,814,459.63/102,106.82
  6. Step 6: Final answer
    x = 119,735.53

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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.