Home / 118,733.66-178,166.07-66,172.76

Finding the Fourth Proportional to 118,733.66, 178,166.07 and 66,172.76

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Solution

The fourth proportional to 118,733.66, 178,166.07 and 66,172.76 is: 99,295.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,733.66 : 178,166.07 = 66,172.76 : x
  2. Step 2: Convert to fraction form
    118,733.66/178,166.07 = 66,172.76/x
  3. Step 3: Cross multiply
    118,733.66x = 178,166.07 × 66,172.76
  4. Step 4: Simplify right side
    118,733.66x = 11,789,740,590.25
  5. Step 5: Solve for x
    x = 11,789,740,590.25/118,733.66
  6. Step 6: Final answer
    x = 99,295.69

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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.