Home / 118,750.14-178,132.50-52,221.60

Finding the Fourth Proportional to 118,750.14, 178,132.50 and 52,221.60

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Solution

The fourth proportional to 118,750.14, 178,132.50 and 52,221.60 is: 78,335.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,750.14 : 178,132.50 = 52,221.60 : x
  2. Step 2: Convert to fraction form
    118,750.14/178,132.50 = 52,221.60/x
  3. Step 3: Cross multiply
    118,750.14x = 178,132.50 × 52,221.60
  4. Step 4: Simplify right side
    118,750.14x = 9,302,364,162
  5. Step 5: Solve for x
    x = 9,302,364,162/118,750.14
  6. Step 6: Final answer
    x = 78,335.61

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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.