Home / 198,090.77-273,363.66-107,446.50

Finding the Fourth Proportional to 198,090.77, 273,363.66 and 107,446.50

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Solution

The fourth proportional to 198,090.77, 273,363.66 and 107,446.50 is: 148,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,090.77 : 273,363.66 = 107,446.50 : x
  2. Step 2: Convert to fraction form
    198,090.77/273,363.66 = 107,446.50/x
  3. Step 3: Cross multiply
    198,090.77x = 273,363.66 × 107,446.50
  4. Step 4: Simplify right side
    198,090.77x = 29,371,968,494.19
  5. Step 5: Solve for x
    x = 29,371,968,494.19/198,090.77
  6. Step 6: Final answer
    x = 148,275.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.