Home / 109,749.08-164,451.90-84,850.49

Finding the Fourth Proportional to 109,749.08, 164,451.90 and 84,850.49

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Solution

The fourth proportional to 109,749.08, 164,451.90 and 84,850.49 is: 127,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,749.08 : 164,451.90 = 84,850.49 : x
  2. Step 2: Convert to fraction form
    109,749.08/164,451.90 = 84,850.49/x
  3. Step 3: Cross multiply
    109,749.08x = 164,451.90 × 84,850.49
  4. Step 4: Simplify right side
    109,749.08x = 13,953,824,296.43
  5. Step 5: Solve for x
    x = 13,953,824,296.43/109,749.08
  6. Step 6: Final answer
    x = 127,142.97

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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.