Home / 208,806.96-288,150.54-122,775.66

Finding the Fourth Proportional to 208,806.96, 288,150.54 and 122,775.66

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Solution

The fourth proportional to 208,806.96, 288,150.54 and 122,775.66 is: 169,428.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,806.96 : 288,150.54 = 122,775.66 : x
  2. Step 2: Convert to fraction form
    208,806.96/288,150.54 = 122,775.66/x
  3. Step 3: Cross multiply
    208,806.96x = 288,150.54 × 122,775.66
  4. Step 4: Simplify right side
    208,806.96x = 35,377,872,727.86
  5. Step 5: Solve for x
    x = 35,377,872,727.86/208,806.96
  6. Step 6: Final answer
    x = 169,428.61

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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.