Home / 109,013.09-163,543.21-33,105.39

Finding the Fourth Proportional to 109,013.09, 163,543.21 and 33,105.39

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Solution

The fourth proportional to 109,013.09, 163,543.21 and 33,105.39 is: 49,665.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,013.09 : 163,543.21 = 33,105.39 : x
  2. Step 2: Convert to fraction form
    109,013.09/163,543.21 = 33,105.39/x
  3. Step 3: Cross multiply
    109,013.09x = 163,543.21 × 33,105.39
  4. Step 4: Simplify right side
    109,013.09x = 5,414,160,931.19
  5. Step 5: Solve for x
    x = 5,414,160,931.19/109,013.09
  6. Step 6: Final answer
    x = 49,665.24

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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.