Home / 159,069.39-219,517.08-87,447.84

Finding the Fourth Proportional to 159,069.39, 219,517.08 and 87,447.84

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Solution

The fourth proportional to 159,069.39, 219,517.08 and 87,447.84 is: 120,678.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,069.39 : 219,517.08 = 87,447.84 : x
  2. Step 2: Convert to fraction form
    159,069.39/219,517.08 = 87,447.84/x
  3. Step 3: Cross multiply
    159,069.39x = 219,517.08 × 87,447.84
  4. Step 4: Simplify right side
    159,069.39x = 19,196,294,489.11
  5. Step 5: Solve for x
    x = 19,196,294,489.11/159,069.39
  6. Step 6: Final answer
    x = 120,678.75

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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.