Home / 117,115.43-161,620.58-63,401.59

Finding the Fourth Proportional to 117,115.43, 161,620.58 and 63,401.59

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Solution

The fourth proportional to 117,115.43, 161,620.58 and 63,401.59 is: 87,494.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,115.43 : 161,620.58 = 63,401.59 : x
  2. Step 2: Convert to fraction form
    117,115.43/161,620.58 = 63,401.59/x
  3. Step 3: Cross multiply
    117,115.43x = 161,620.58 × 63,401.59
  4. Step 4: Simplify right side
    117,115.43x = 10,247,001,027.66
  5. Step 5: Solve for x
    x = 10,247,001,027.66/117,115.43
  6. Step 6: Final answer
    x = 87,494.89

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1.5x scale

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.