Home / 118,086.76-177,176.22-68,140.48

Finding the Fourth Proportional to 118,086.76, 177,176.22 and 68,140.48

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Solution

The fourth proportional to 118,086.76, 177,176.22 and 68,140.48 is: 102,237.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,086.76 : 177,176.22 = 68,140.48 : x
  2. Step 2: Convert to fraction form
    118,086.76/177,176.22 = 68,140.48/x
  3. Step 3: Cross multiply
    118,086.76x = 177,176.22 × 68,140.48
  4. Step 4: Simplify right side
    118,086.76x = 12,072,872,675.39
  5. Step 5: Solve for x
    x = 12,072,872,675.39/118,086.76
  6. Step 6: Final answer
    x = 102,237.31

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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.