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Finding the Fourth Proportional to 144,603.84, 199,524.92 and 90,857.68

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Solution

The fourth proportional to 144,603.84, 199,524.92 and 90,857.68 is: 125,365.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,603.84 : 199,524.92 = 90,857.68 : x
  2. Step 2: Convert to fraction form
    144,603.84/199,524.92 = 90,857.68/x
  3. Step 3: Cross multiply
    144,603.84x = 199,524.92 × 90,857.68
  4. Step 4: Simplify right side
    144,603.84x = 18,128,371,333.39
  5. Step 5: Solve for x
    x = 18,128,371,333.39/144,603.84
  6. Step 6: Final answer
    x = 125,365.77

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1.5x scale

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.