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Finding the Fourth Proportional to 145,305.94, 200,524.58 and 79,897.54

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Solution

The fourth proportional to 145,305.94, 200,524.58 and 79,897.54 is: 110,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,305.94 : 200,524.58 = 79,897.54 : x
  2. Step 2: Convert to fraction form
    145,305.94/200,524.58 = 79,897.54/x
  3. Step 3: Cross multiply
    145,305.94x = 200,524.58 × 79,897.54
  4. Step 4: Simplify right side
    145,305.94x = 16,021,420,651.53
  5. Step 5: Solve for x
    x = 16,021,420,651.53/145,305.94
  6. Step 6: Final answer
    x = 110,259.92

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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.