Home / 118,879.03-178,338.59-39,974.50

Finding the Fourth Proportional to 118,879.03, 178,338.59 and 39,974.50

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Solution

The fourth proportional to 118,879.03, 178,338.59 and 39,974.50 is: 59,968.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,879.03 : 178,338.59 = 39,974.50 : x
  2. Step 2: Convert to fraction form
    118,879.03/178,338.59 = 39,974.50/x
  3. Step 3: Cross multiply
    118,879.03x = 178,338.59 × 39,974.50
  4. Step 4: Simplify right side
    118,879.03x = 7,128,995,965.96
  5. Step 5: Solve for x
    x = 7,128,995,965.96/118,879.03
  6. Step 6: Final answer
    x = 59,968.49

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1.5x scale

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.