Home / 109,419.19-164,128.78-26,313.19

Finding the Fourth Proportional to 109,419.19, 164,128.78 and 26,313.19

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Solution

The fourth proportional to 109,419.19, 164,128.78 and 26,313.19 is: 39,469.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,419.19 : 164,128.78 = 26,313.19 : x
  2. Step 2: Convert to fraction form
    109,419.19/164,128.78 = 26,313.19/x
  3. Step 3: Cross multiply
    109,419.19x = 164,128.78 × 26,313.19
  4. Step 4: Simplify right side
    109,419.19x = 4,318,751,395.18
  5. Step 5: Solve for x
    x = 4,318,751,395.18/109,419.19
  6. Step 6: Final answer
    x = 39,469.78

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1.5x scale

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.