Home / 109,049.70-163,312.04-73,882.74

Finding the Fourth Proportional to 109,049.70, 163,312.04 and 73,882.74

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Solution

The fourth proportional to 109,049.70, 163,312.04 and 73,882.74 is: 110,646.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,049.70 : 163,312.04 = 73,882.74 : x
  2. Step 2: Convert to fraction form
    109,049.70/163,312.04 = 73,882.74/x
  3. Step 3: Cross multiply
    109,049.70x = 163,312.04 × 73,882.74
  4. Step 4: Simplify right side
    109,049.70x = 12,065,940,990.19
  5. Step 5: Solve for x
    x = 12,065,940,990.19/109,049.70
  6. Step 6: Final answer
    x = 110,646.26

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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.