Home / 131,640.10-197,402.55-52,728.10

Finding the Fourth Proportional to 131,640.10, 197,402.55 and 52,728.10

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Solution

The fourth proportional to 131,640.10, 197,402.55 and 52,728.10 is: 79,069.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,640.10 : 197,402.55 = 52,728.10 : x
  2. Step 2: Convert to fraction form
    131,640.10/197,402.55 = 52,728.10/x
  3. Step 3: Cross multiply
    131,640.10x = 197,402.55 × 52,728.10
  4. Step 4: Simplify right side
    131,640.10x = 10,408,661,396.66
  5. Step 5: Solve for x
    x = 10,408,661,396.66/131,640.10
  6. Step 6: Final answer
    x = 79,069.08

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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.