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Finding the Fourth Proportional to 159,494.81, 220,103.46 and 87,873.30

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Solution

The fourth proportional to 159,494.81, 220,103.46 and 87,873.30 is: 121,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,494.81 : 220,103.46 = 87,873.30 : x
  2. Step 2: Convert to fraction form
    159,494.81/220,103.46 = 87,873.30/x
  3. Step 3: Cross multiply
    159,494.81x = 220,103.46 × 87,873.30
  4. Step 4: Simplify right side
    159,494.81x = 19,341,217,371.62
  5. Step 5: Solve for x
    x = 19,341,217,371.62/159,494.81
  6. Step 6: Final answer
    x = 121,265.50

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1.5x scale

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.