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Finding the Fourth Proportional to 104,960, 157,440 and 27,136

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Solution

The fourth proportional to 104,960, 157,440 and 27,136 is: 40,704

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,960 : 157,440 = 27,136 : x
  2. Step 2: Convert to fraction form
    104,960/157,440 = 27,136/x
  3. Step 3: Cross multiply
    104,960x = 157,440 × 27,136
  4. Step 4: Simplify right side
    104,960x = 4,272,291,840
  5. Step 5: Solve for x
    x = 4,272,291,840/104,960
  6. Step 6: Final answer
    x = 40,704

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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.