Home / 189,165.43-261,035.20-106,391.82

Finding the Fourth Proportional to 189,165.43, 261,035.20 and 106,391.82

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Solution

The fourth proportional to 189,165.43, 261,035.20 and 106,391.82 is: 146,813.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,165.43 : 261,035.20 = 106,391.82 : x
  2. Step 2: Convert to fraction form
    189,165.43/261,035.20 = 106,391.82/x
  3. Step 3: Cross multiply
    189,165.43x = 261,035.20 × 106,391.82
  4. Step 4: Simplify right side
    189,165.43x = 27,772,010,012.06
  5. Step 5: Solve for x
    x = 27,772,010,012.06/189,165.43
  6. Step 6: Final answer
    x = 146,813.35

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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.