Home / 131,026.20-196,247.70-128,110.20

Finding the Fourth Proportional to 131,026.20, 196,247.70 and 128,110.20

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Solution

The fourth proportional to 131,026.20, 196,247.70 and 128,110.20 is: 191,880.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,026.20 : 196,247.70 = 128,110.20 : x
  2. Step 2: Convert to fraction form
    131,026.20/196,247.70 = 128,110.20/x
  3. Step 3: Cross multiply
    131,026.20x = 196,247.70 × 128,110.20
  4. Step 4: Simplify right side
    131,026.20x = 25,141,332,096.54
  5. Step 5: Solve for x
    x = 25,141,332,096.54/131,026.20
  6. Step 6: Final answer
    x = 191,880.19

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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.