Home / 109,713.07-164,557.80-74,401.05

Finding the Fourth Proportional to 109,713.07, 164,557.80 and 74,401.05

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Solution

The fourth proportional to 109,713.07, 164,557.80 and 74,401.05 is: 111,593.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,713.07 : 164,557.80 = 74,401.05 : x
  2. Step 2: Convert to fraction form
    109,713.07/164,557.80 = 74,401.05/x
  3. Step 3: Cross multiply
    109,713.07x = 164,557.80 × 74,401.05
  4. Step 4: Simplify right side
    109,713.07x = 12,243,273,105.69
  5. Step 5: Solve for x
    x = 12,243,273,105.69/109,713.07
  6. Step 6: Final answer
    x = 111,593.57

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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.