Home / 121,778.77-182,695.83-55,237.92

Finding the Fourth Proportional to 121,778.77, 182,695.83 and 55,237.92

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Solution

The fourth proportional to 121,778.77, 182,695.83 and 55,237.92 is: 82,869.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,778.77 : 182,695.83 = 55,237.92 : x
  2. Step 2: Convert to fraction form
    121,778.77/182,695.83 = 55,237.92/x
  3. Step 3: Cross multiply
    121,778.77x = 182,695.83 × 55,237.92
  4. Step 4: Simplify right side
    121,778.77x = 10,091,738,446.47
  5. Step 5: Solve for x
    x = 10,091,738,446.47/121,778.77
  6. Step 6: Final answer
    x = 82,869.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.