Home / 118,739.64-178,054.12-68,834

Finding the Fourth Proportional to 118,739.64, 178,054.12 and 68,834

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Solution

The fourth proportional to 118,739.64, 178,054.12 and 68,834 is: 103,218.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,739.64 : 178,054.12 = 68,834 : x
  2. Step 2: Convert to fraction form
    118,739.64/178,054.12 = 68,834/x
  3. Step 3: Cross multiply
    118,739.64x = 178,054.12 × 68,834
  4. Step 4: Simplify right side
    118,739.64x = 12,256,177,296.08
  5. Step 5: Solve for x
    x = 12,256,177,296.08/118,739.64
  6. Step 6: Final answer
    x = 103,218.92

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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.