Home / 121,905.60-182,792.64-55,309.38

Finding the Fourth Proportional to 121,905.60, 182,792.64 and 55,309.38

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Solution

The fourth proportional to 121,905.60, 182,792.64 and 55,309.38 is: 82,934.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,905.60 : 182,792.64 = 55,309.38 : x
  2. Step 2: Convert to fraction form
    121,905.60/182,792.64 = 55,309.38/x
  3. Step 3: Cross multiply
    121,905.60x = 182,792.64 × 55,309.38
  4. Step 4: Simplify right side
    121,905.60x = 10,110,147,586.96
  5. Step 5: Solve for x
    x = 10,110,147,586.96/121,905.60
  6. Step 6: Final answer
    x = 82,934.23

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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.