Home / 145,562.28-200,873.62-81,900.04

Finding the Fourth Proportional to 145,562.28, 200,873.62 and 81,900.04

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Solution

The fourth proportional to 145,562.28, 200,873.62 and 81,900.04 is: 113,020.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,562.28 : 200,873.62 = 81,900.04 : x
  2. Step 2: Convert to fraction form
    145,562.28/200,873.62 = 81,900.04/x
  3. Step 3: Cross multiply
    145,562.28x = 200,873.62 × 81,900.04
  4. Step 4: Simplify right side
    145,562.28x = 16,451,557,512.94
  5. Step 5: Solve for x
    x = 16,451,557,512.94/145,562.28
  6. Step 6: Final answer
    x = 113,020.75

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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.