Home / 193,749.20-290,429.40-88,643.60

Finding the Fourth Proportional to 193,749.20, 290,429.40 and 88,643.60

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Solution

The fourth proportional to 193,749.20, 290,429.40 and 88,643.60 is: 132,876.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,749.20 : 290,429.40 = 88,643.60 : x
  2. Step 2: Convert to fraction form
    193,749.20/290,429.40 = 88,643.60/x
  3. Step 3: Cross multiply
    193,749.20x = 290,429.40 × 88,643.60
  4. Step 4: Simplify right side
    193,749.20x = 25,744,707,561.84
  5. Step 5: Solve for x
    x = 25,744,707,561.84/193,749.20
  6. Step 6: Final answer
    x = 132,876.46

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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.