Home / 118,813.66-178,225.89-66,183.46

Finding the Fourth Proportional to 118,813.66, 178,225.89 and 66,183.46

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Solution

The fourth proportional to 118,813.66, 178,225.89 and 66,183.46 is: 99,278.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,813.66 : 178,225.89 = 66,183.46 : x
  2. Step 2: Convert to fraction form
    118,813.66/178,225.89 = 66,183.46/x
  3. Step 3: Cross multiply
    118,813.66x = 178,225.89 × 66,183.46
  4. Step 4: Simplify right side
    118,813.66x = 11,795,606,061.78
  5. Step 5: Solve for x
    x = 11,795,606,061.78/118,813.66
  6. Step 6: Final answer
    x = 99,278.20

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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.