Home / 145,102.44-200,231.60-80,568.36

Finding the Fourth Proportional to 145,102.44, 200,231.60 and 80,568.36

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Solution

The fourth proportional to 145,102.44, 200,231.60 and 80,568.36 is: 111,178.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,102.44 : 200,231.60 = 80,568.36 : x
  2. Step 2: Convert to fraction form
    145,102.44/200,231.60 = 80,568.36/x
  3. Step 3: Cross multiply
    145,102.44x = 200,231.60 × 80,568.36
  4. Step 4: Simplify right side
    145,102.44x = 16,132,331,632.18
  5. Step 5: Solve for x
    x = 16,132,331,632.18/145,102.44
  6. Step 6: Final answer
    x = 111,178.91

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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.