Home / 149,081.31-205,817.05-98,241.76

Finding the Fourth Proportional to 149,081.31, 205,817.05 and 98,241.76

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Solution

The fourth proportional to 149,081.31, 205,817.05 and 98,241.76 is: 135,629.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,081.31 : 205,817.05 = 98,241.76 : x
  2. Step 2: Convert to fraction form
    149,081.31/205,817.05 = 98,241.76/x
  3. Step 3: Cross multiply
    149,081.31x = 205,817.05 × 98,241.76
  4. Step 4: Simplify right side
    149,081.31x = 20,219,829,610.08
  5. Step 5: Solve for x
    x = 20,219,829,610.08/149,081.31
  6. Step 6: Final answer
    x = 135,629.54

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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.