Home / 118,739.75-178,109.98-28,782.10

Finding the Fourth Proportional to 118,739.75, 178,109.98 and 28,782.10

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Solution

The fourth proportional to 118,739.75, 178,109.98 and 28,782.10 is: 43,173.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,739.75 : 178,109.98 = 28,782.10 : x
  2. Step 2: Convert to fraction form
    118,739.75/178,109.98 = 28,782.10/x
  3. Step 3: Cross multiply
    118,739.75x = 178,109.98 × 28,782.10
  4. Step 4: Simplify right side
    118,739.75x = 5,126,379,923.40
  5. Step 5: Solve for x
    x = 5,126,379,923.40/118,739.75
  6. Step 6: Final answer
    x = 43,173.24

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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.