Home / 118,279.35-177,442.38-43,400.11

Finding the Fourth Proportional to 118,279.35, 177,442.38 and 43,400.11

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Solution

The fourth proportional to 118,279.35, 177,442.38 and 43,400.11 is: 65,108.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,279.35 : 177,442.38 = 43,400.11 : x
  2. Step 2: Convert to fraction form
    118,279.35/177,442.38 = 43,400.11/x
  3. Step 3: Cross multiply
    118,279.35x = 177,442.38 × 43,400.11
  4. Step 4: Simplify right side
    118,279.35x = 7,701,018,810.66
  5. Step 5: Solve for x
    x = 7,701,018,810.66/118,279.35
  6. Step 6: Final answer
    x = 65,108.73

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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.