Home / 158,998.55-219,418.07-87,377.94

Finding the Fourth Proportional to 158,998.55, 219,418.07 and 87,377.94

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Solution

The fourth proportional to 158,998.55, 219,418.07 and 87,377.94 is: 120,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,998.55 : 219,418.07 = 87,377.94 : x
  2. Step 2: Convert to fraction form
    158,998.55/219,418.07 = 87,377.94/x
  3. Step 3: Cross multiply
    158,998.55x = 219,418.07 × 87,377.94
  4. Step 4: Simplify right side
    158,998.55x = 19,172,298,518.49
  5. Step 5: Solve for x
    x = 19,172,298,518.49/158,998.55
  6. Step 6: Final answer
    x = 120,581.60

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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.