Home / 109,579.18-164,420.84-75,897.04

Finding the Fourth Proportional to 109,579.18, 164,420.84 and 75,897.04

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Solution

The fourth proportional to 109,579.18, 164,420.84 and 75,897.04 is: 113,881.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,579.18 : 164,420.84 = 75,897.04 : x
  2. Step 2: Convert to fraction form
    109,579.18/164,420.84 = 75,897.04/x
  3. Step 3: Cross multiply
    109,579.18x = 164,420.84 × 75,897.04
  4. Step 4: Simplify right side
    109,579.18x = 12,479,055,070.31
  5. Step 5: Solve for x
    x = 12,479,055,070.31/109,579.18
  6. Step 6: Final answer
    x = 113,881.62

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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.