Home / 159,290.69-219,819.48-87,669.17

Finding the Fourth Proportional to 159,290.69, 219,819.48 and 87,669.17

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Solution

The fourth proportional to 159,290.69, 219,819.48 and 87,669.17 is: 120,982.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,290.69 : 219,819.48 = 87,669.17 : x
  2. Step 2: Convert to fraction form
    159,290.69/219,819.48 = 87,669.17/x
  3. Step 3: Cross multiply
    159,290.69x = 219,819.48 × 87,669.17
  4. Step 4: Simplify right side
    159,290.69x = 19,271,391,361.43
  5. Step 5: Solve for x
    x = 19,271,391,361.43/159,290.69
  6. Step 6: Final answer
    x = 120,982.53

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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.