Home / 88,289.26-131,602.16-81,203.38

Finding the Fourth Proportional to 88,289.26, 131,602.16 and 81,203.38

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Solution

The fourth proportional to 88,289.26, 131,602.16 and 81,203.38 is: 121,040.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,289.26 : 131,602.16 = 81,203.38 : x
  2. Step 2: Convert to fraction form
    88,289.26/131,602.16 = 81,203.38/x
  3. Step 3: Cross multiply
    88,289.26x = 131,602.16 × 81,203.38
  4. Step 4: Simplify right side
    88,289.26x = 10,686,540,081.30
  5. Step 5: Solve for x
    x = 10,686,540,081.30/88,289.26
  6. Step 6: Final answer
    x = 121,040.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.