Home / 131,997.13-197,997.35-87,304.57

Finding the Fourth Proportional to 131,997.13, 197,997.35 and 87,304.57

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Solution

The fourth proportional to 131,997.13, 197,997.35 and 87,304.57 is: 130,957.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,997.13 : 197,997.35 = 87,304.57 : x
  2. Step 2: Convert to fraction form
    131,997.13/197,997.35 = 87,304.57/x
  3. Step 3: Cross multiply
    131,997.13x = 197,997.35 × 87,304.57
  4. Step 4: Simplify right side
    131,997.13x = 17,286,072,571.37
  5. Step 5: Solve for x
    x = 17,286,072,571.37/131,997.13
  6. Step 6: Final answer
    x = 130,957.95

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1.5x scale

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.