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Finding the Fourth Proportional to 103,530.38, 155,299.02 and 28,644.26

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Solution

The fourth proportional to 103,530.38, 155,299.02 and 28,644.26 is: 42,967.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,530.38 : 155,299.02 = 28,644.26 : x
  2. Step 2: Convert to fraction form
    103,530.38/155,299.02 = 28,644.26/x
  3. Step 3: Cross multiply
    103,530.38x = 155,299.02 × 28,644.26
  4. Step 4: Simplify right side
    103,530.38x = 4,448,424,622.71
  5. Step 5: Solve for x
    x = 4,448,424,622.71/103,530.38
  6. Step 6: Final answer
    x = 42,967.34

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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.