Home / 118,091.97-162,969.93-72,799.86

Finding the Fourth Proportional to 118,091.97, 162,969.93 and 72,799.86

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Solution

The fourth proportional to 118,091.97, 162,969.93 and 72,799.86 is: 100,465.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,091.97 : 162,969.93 = 72,799.86 : x
  2. Step 2: Convert to fraction form
    118,091.97/162,969.93 = 72,799.86/x
  3. Step 3: Cross multiply
    118,091.97x = 162,969.93 × 72,799.86
  4. Step 4: Simplify right side
    118,091.97x = 11,864,188,088.21
  5. Step 5: Solve for x
    x = 11,864,188,088.21/118,091.97
  6. Step 6: Final answer
    x = 100,465.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.