Home / 158,716.01-219,027.96-87,100.53

Finding the Fourth Proportional to 158,716.01, 219,027.96 and 87,100.53

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Solution

The fourth proportional to 158,716.01, 219,027.96 and 87,100.53 is: 120,198.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,716.01 : 219,027.96 = 87,100.53 : x
  2. Step 2: Convert to fraction form
    158,716.01/219,027.96 = 87,100.53/x
  3. Step 3: Cross multiply
    158,716.01x = 219,027.96 × 87,100.53
  4. Step 4: Simplify right side
    158,716.01x = 19,077,451,400.82
  5. Step 5: Solve for x
    x = 19,077,451,400.82/158,716.01
  6. Step 6: Final answer
    x = 120,198.66

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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.