Home / 118,732.02-178,103.49-66,101.86

Finding the Fourth Proportional to 118,732.02, 178,103.49 and 66,101.86

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Solution

The fourth proportional to 118,732.02, 178,103.49 and 66,101.86 is: 99,155.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,732.02 : 178,103.49 = 66,101.86 : x
  2. Step 2: Convert to fraction form
    118,732.02/178,103.49 = 66,101.86/x
  3. Step 3: Cross multiply
    118,732.02x = 178,103.49 × 66,101.86
  4. Step 4: Simplify right side
    118,732.02x = 11,772,971,961.49
  5. Step 5: Solve for x
    x = 11,772,971,961.49/118,732.02
  6. Step 6: Final answer
    x = 99,155.83

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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.