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Finding the Fourth Proportional to 145,878.39, 218,937.83 and 112,799.97

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Solution

The fourth proportional to 145,878.39, 218,937.83 and 112,799.97 is: 169,292.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,878.39 : 218,937.83 = 112,799.97 : x
  2. Step 2: Convert to fraction form
    145,878.39/218,937.83 = 112,799.97/x
  3. Step 3: Cross multiply
    145,878.39x = 218,937.83 × 112,799.97
  4. Step 4: Simplify right side
    145,878.39x = 24,696,180,091.87
  5. Step 5: Solve for x
    x = 24,696,180,091.87/145,878.39
  6. Step 6: Final answer
    x = 169,292.93

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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.