Home / 135,879.31-203,840.84-47,185.53

Finding the Fourth Proportional to 135,879.31, 203,840.84 and 47,185.53

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Solution

The fourth proportional to 135,879.31, 203,840.84 and 47,185.53 is: 70,785.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,879.31 : 203,840.84 = 47,185.53 : x
  2. Step 2: Convert to fraction form
    135,879.31/203,840.84 = 47,185.53/x
  3. Step 3: Cross multiply
    135,879.31x = 203,840.84 × 47,185.53
  4. Step 4: Simplify right side
    135,879.31x = 9,618,338,071.05
  5. Step 5: Solve for x
    x = 9,618,338,071.05/135,879.31
  6. Step 6: Final answer
    x = 70,785.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.