Home / 189,854.85-261,961.77-104,955.51

Finding the Fourth Proportional to 189,854.85, 261,961.77 and 104,955.51

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Solution

The fourth proportional to 189,854.85, 261,961.77 and 104,955.51 is: 144,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,854.85 : 261,961.77 = 104,955.51 : x
  2. Step 2: Convert to fraction form
    189,854.85/261,961.77 = 104,955.51/x
  3. Step 3: Cross multiply
    189,854.85x = 261,961.77 × 104,955.51
  4. Step 4: Simplify right side
    189,854.85x = 27,494,331,170.85
  5. Step 5: Solve for x
    x = 27,494,331,170.85/189,854.85
  6. Step 6: Final answer
    x = 144,817.64

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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.