Home / 220,207.37-303,871.77-129,545.82

Finding the Fourth Proportional to 220,207.37, 303,871.77 and 129,545.82

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Solution

The fourth proportional to 220,207.37, 303,871.77 and 129,545.82 is: 178,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,207.37 : 303,871.77 = 129,545.82 : x
  2. Step 2: Convert to fraction form
    220,207.37/303,871.77 = 129,545.82/x
  3. Step 3: Cross multiply
    220,207.37x = 303,871.77 × 129,545.82
  4. Step 4: Simplify right side
    220,207.37x = 39,365,317,619.50
  5. Step 5: Solve for x
    x = 39,365,317,619.50/220,207.37
  6. Step 6: Final answer
    x = 178,764.76

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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.