Home / 109,401.40-164,102.10-92,488.60

Finding the Fourth Proportional to 109,401.40, 164,102.10 and 92,488.60

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Solution

The fourth proportional to 109,401.40, 164,102.10 and 92,488.60 is: 138,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,401.40 : 164,102.10 = 92,488.60 : x
  2. Step 2: Convert to fraction form
    109,401.40/164,102.10 = 92,488.60/x
  3. Step 3: Cross multiply
    109,401.40x = 164,102.10 × 92,488.60
  4. Step 4: Simplify right side
    109,401.40x = 15,177,573,486.06
  5. Step 5: Solve for x
    x = 15,177,573,486.06/109,401.40
  6. Step 6: Final answer
    x = 138,732.90

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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.