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Finding the Fourth Proportional to 103,449.58, 155,242.41 and 56,735.26

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Solution

The fourth proportional to 103,449.58, 155,242.41 and 56,735.26 is: 85,140.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,449.58 : 155,242.41 = 56,735.26 : x
  2. Step 2: Convert to fraction form
    103,449.58/155,242.41 = 56,735.26/x
  3. Step 3: Cross multiply
    103,449.58x = 155,242.41 × 56,735.26
  4. Step 4: Simplify right side
    103,449.58x = 8,807,718,494.38
  5. Step 5: Solve for x
    x = 8,807,718,494.38/103,449.58
  6. Step 6: Final answer
    x = 85,140.21

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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.