Home / 118,712.55-178,091.91-38,772.84

Finding the Fourth Proportional to 118,712.55, 178,091.91 and 38,772.84

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Solution

The fourth proportional to 118,712.55, 178,091.91 and 38,772.84 is: 58,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,712.55 : 178,091.91 = 38,772.84 : x
  2. Step 2: Convert to fraction form
    118,712.55/178,091.91 = 38,772.84/x
  3. Step 3: Cross multiply
    118,712.55x = 178,091.91 × 38,772.84
  4. Step 4: Simplify right side
    118,712.55x = 6,905,129,131.72
  5. Step 5: Solve for x
    x = 6,905,129,131.72/118,712.55
  6. Step 6: Final answer
    x = 58,166.80

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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.