Home / 107,688.28-161,532.38-28,800.46

Finding the Fourth Proportional to 107,688.28, 161,532.38 and 28,800.46

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Solution

The fourth proportional to 107,688.28, 161,532.38 and 28,800.46 is: 43,200.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,688.28 : 161,532.38 = 28,800.46 : x
  2. Step 2: Convert to fraction form
    107,688.28/161,532.38 = 28,800.46/x
  3. Step 3: Cross multiply
    107,688.28x = 161,532.38 × 28,800.46
  4. Step 4: Simplify right side
    107,688.28x = 4,652,206,517.06
  5. Step 5: Solve for x
    x = 4,652,206,517.06/107,688.28
  6. Step 6: Final answer
    x = 43,200.68

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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.