Home / 159,580.07-220,217.77-87,966.75

Finding the Fourth Proportional to 159,580.07, 220,217.77 and 87,966.75

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Solution

The fourth proportional to 159,580.07, 220,217.77 and 87,966.75 is: 121,392.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,580.07 : 220,217.77 = 87,966.75 : x
  2. Step 2: Convert to fraction form
    159,580.07/220,217.77 = 87,966.75/x
  3. Step 3: Cross multiply
    159,580.07x = 220,217.77 × 87,966.75
  4. Step 4: Simplify right side
    159,580.07x = 19,371,841,519.15
  5. Step 5: Solve for x
    x = 19,371,841,519.15/159,580.07
  6. Step 6: Final answer
    x = 121,392.61

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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.