Home / 119,305.20-164,638.89-65,589.69

Finding the Fourth Proportional to 119,305.20, 164,638.89 and 65,589.69

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Solution

The fourth proportional to 119,305.20, 164,638.89 and 65,589.69 is: 90,512.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,305.20 : 164,638.89 = 65,589.69 : x
  2. Step 2: Convert to fraction form
    119,305.20/164,638.89 = 65,589.69/x
  3. Step 3: Cross multiply
    119,305.20x = 164,638.89 × 65,589.69
  4. Step 4: Simplify right side
    119,305.20x = 10,798,613,757.04
  5. Step 5: Solve for x
    x = 10,798,613,757.04/119,305.20
  6. Step 6: Final answer
    x = 90,512.52

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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.