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Finding the Fourth Proportional to 131,954.40, 197,975.04 and 87,755.04

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Solution

The fourth proportional to 131,954.40, 197,975.04 and 87,755.04 is: 131,661.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,954.40 : 197,975.04 = 87,755.04 : x
  2. Step 2: Convert to fraction form
    131,954.40/197,975.04 = 87,755.04/x
  3. Step 3: Cross multiply
    131,954.40x = 197,975.04 × 87,755.04
  4. Step 4: Simplify right side
    131,954.40x = 17,373,307,554.20
  5. Step 5: Solve for x
    x = 17,373,307,554.20/131,954.40
  6. Step 6: Final answer
    x = 131,661.45

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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.