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Finding the Fourth Proportional to 159,634.52, 220,288.80 and 87,035.84

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Solution

The fourth proportional to 159,634.52, 220,288.80 and 87,035.84 is: 120,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,634.52 : 220,288.80 = 87,035.84 : x
  2. Step 2: Convert to fraction form
    159,634.52/220,288.80 = 87,035.84/x
  3. Step 3: Cross multiply
    159,634.52x = 220,288.80 × 87,035.84
  4. Step 4: Simplify right side
    159,634.52x = 19,173,020,750.59
  5. Step 5: Solve for x
    x = 19,173,020,750.59/159,634.52
  6. Step 6: Final answer
    x = 120,105.73

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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.