Home / 109,401.90-164,120.13-47,072.94

Finding the Fourth Proportional to 109,401.90, 164,120.13 and 47,072.94

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Solution

The fourth proportional to 109,401.90, 164,120.13 and 47,072.94 is: 70,616.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,401.90 : 164,120.13 = 47,072.94 : x
  2. Step 2: Convert to fraction form
    109,401.90/164,120.13 = 47,072.94/x
  3. Step 3: Cross multiply
    109,401.90x = 164,120.13 × 47,072.94
  4. Step 4: Simplify right side
    109,401.90x = 7,725,617,032.28
  5. Step 5: Solve for x
    x = 7,725,617,032.28/109,401.90
  6. Step 6: Final answer
    x = 70,616.85

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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.