Home / 159,836.64-220,581.76-91,875.68

Finding the Fourth Proportional to 159,836.64, 220,581.76 and 91,875.68

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Solution

The fourth proportional to 159,836.64, 220,581.76 and 91,875.68 is: 126,792.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,836.64 : 220,581.76 = 91,875.68 : x
  2. Step 2: Convert to fraction form
    159,836.64/220,581.76 = 91,875.68/x
  3. Step 3: Cross multiply
    159,836.64x = 220,581.76 × 91,875.68
  4. Step 4: Simplify right side
    159,836.64x = 20,266,099,195.60
  5. Step 5: Solve for x
    x = 20,266,099,195.60/159,836.64
  6. Step 6: Final answer
    x = 126,792.58

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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.