Home / 118,906.06-178,386.54-40,018.36

Finding the Fourth Proportional to 118,906.06, 178,386.54 and 40,018.36

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Solution

The fourth proportional to 118,906.06, 178,386.54 and 40,018.36 is: 60,036.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,906.06 : 178,386.54 = 40,018.36 : x
  2. Step 2: Convert to fraction form
    118,906.06/178,386.54 = 40,018.36/x
  3. Step 3: Cross multiply
    118,906.06x = 178,386.54 × 40,018.36
  4. Step 4: Simplify right side
    118,906.06x = 7,138,736,776.87
  5. Step 5: Solve for x
    x = 7,138,736,776.87/118,906.06
  6. Step 6: Final answer
    x = 60,036.78

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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.