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Finding the Fourth Proportional to 103,645.44, 155,520 and 41,368.32

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Solution

The fourth proportional to 103,645.44, 155,520 and 41,368.32 is: 62,073.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,645.44 : 155,520 = 41,368.32 : x
  2. Step 2: Convert to fraction form
    103,645.44/155,520 = 41,368.32/x
  3. Step 3: Cross multiply
    103,645.44x = 155,520 × 41,368.32
  4. Step 4: Simplify right side
    103,645.44x = 6,433,601,126.40
  5. Step 5: Solve for x
    x = 6,433,601,126.40/103,645.44
  6. Step 6: Final answer
    x = 62,073.17

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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.