Home / 109,801.05-164,337.08-79,729.80

Finding the Fourth Proportional to 109,801.05, 164,337.08 and 79,729.80

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Solution

The fourth proportional to 109,801.05, 164,337.08 and 79,729.80 is: 119,330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,801.05 : 164,337.08 = 79,729.80 : x
  2. Step 2: Convert to fraction form
    109,801.05/164,337.08 = 79,729.80/x
  3. Step 3: Cross multiply
    109,801.05x = 164,337.08 × 79,729.80
  4. Step 4: Simplify right side
    109,801.05x = 13,102,562,122.34
  5. Step 5: Solve for x
    x = 13,102,562,122.34/109,801.05
  6. Step 6: Final answer
    x = 119,330.03

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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.