Home / 159,137.33-219,605.13-87,517.35

Finding the Fourth Proportional to 159,137.33, 219,605.13 and 87,517.35

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Solution

The fourth proportional to 159,137.33, 219,605.13 and 87,517.35 is: 120,771.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,137.33 : 219,605.13 = 87,517.35 : x
  2. Step 2: Convert to fraction form
    159,137.33/219,605.13 = 87,517.35/x
  3. Step 3: Cross multiply
    159,137.33x = 219,605.13 × 87,517.35
  4. Step 4: Simplify right side
    159,137.33x = 19,219,259,024.01
  5. Step 5: Solve for x
    x = 19,219,259,024.01/159,137.33
  6. Step 6: Final answer
    x = 120,771.53

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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.