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Finding the Fourth Proportional to 131,618.79, 197,529.71 and 97,960.86

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Solution

The fourth proportional to 131,618.79, 197,529.71 and 97,960.86 is: 147,016.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,618.79 : 197,529.71 = 97,960.86 : x
  2. Step 2: Convert to fraction form
    131,618.79/197,529.71 = 97,960.86/x
  3. Step 3: Cross multiply
    131,618.79x = 197,529.71 × 97,960.86
  4. Step 4: Simplify right side
    131,618.79x = 19,350,179,777.35
  5. Step 5: Solve for x
    x = 19,350,179,777.35/131,618.79
  6. Step 6: Final answer
    x = 147,016.85

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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.