Home / 109,945.78-164,918.70-26,839.78

Finding the Fourth Proportional to 109,945.78, 164,918.70 and 26,839.78

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Solution

The fourth proportional to 109,945.78, 164,918.70 and 26,839.78 is: 40,259.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,945.78 : 164,918.70 = 26,839.78 : x
  2. Step 2: Convert to fraction form
    109,945.78/164,918.70 = 26,839.78/x
  3. Step 3: Cross multiply
    109,945.78x = 164,918.70 × 26,839.78
  4. Step 4: Simplify right side
    109,945.78x = 4,426,381,625.89
  5. Step 5: Solve for x
    x = 4,426,381,625.89/109,945.78
  6. Step 6: Final answer
    x = 40,259.68

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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.