Home / 98,238.92-135,569.63-55,218.65

Finding the Fourth Proportional to 98,238.92, 135,569.63 and 55,218.65

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Solution

The fourth proportional to 98,238.92, 135,569.63 and 55,218.65 is: 76,201.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,238.92 : 135,569.63 = 55,218.65 : x
  2. Step 2: Convert to fraction form
    98,238.92/135,569.63 = 55,218.65/x
  3. Step 3: Cross multiply
    98,238.92x = 135,569.63 × 55,218.65
  4. Step 4: Simplify right side
    98,238.92x = 7,485,971,409.80
  5. Step 5: Solve for x
    x = 7,485,971,409.80/98,238.92
  6. Step 6: Final answer
    x = 76,201.69

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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.