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Finding the Fourth Proportional to 105,696, 158,544 and 40,032

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Solution

The fourth proportional to 105,696, 158,544 and 40,032 is: 60,048

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,696 : 158,544 = 40,032 : x
  2. Step 2: Convert to fraction form
    105,696/158,544 = 40,032/x
  3. Step 3: Cross multiply
    105,696x = 158,544 × 40,032
  4. Step 4: Simplify right side
    105,696x = 6,346,833,408
  5. Step 5: Solve for x
    x = 6,346,833,408/105,696
  6. Step 6: Final answer
    x = 60,048

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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.