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Finding the Fourth Proportional to 118,812.66, 178,224.39 and 66,182.46

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Solution

The fourth proportional to 118,812.66, 178,224.39 and 66,182.46 is: 99,276.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,812.66 : 178,224.39 = 66,182.46 : x
  2. Step 2: Convert to fraction form
    118,812.66/178,224.39 = 66,182.46/x
  3. Step 3: Cross multiply
    118,812.66x = 178,224.39 × 66,182.46
  4. Step 4: Simplify right side
    118,812.66x = 11,795,328,562.20
  5. Step 5: Solve for x
    x = 11,795,328,562.20/118,812.66
  6. Step 6: Final answer
    x = 99,276.70

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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.