Home / 131,032.70-196,257.45-128,116.70

Finding the Fourth Proportional to 131,032.70, 196,257.45 and 128,116.70

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Solution

The fourth proportional to 131,032.70, 196,257.45 and 128,116.70 is: 191,889.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,032.70 : 196,257.45 = 128,116.70 : x
  2. Step 2: Convert to fraction form
    131,032.70/196,257.45 = 128,116.70/x
  3. Step 3: Cross multiply
    131,032.70x = 196,257.45 × 128,116.70
  4. Step 4: Simplify right side
    131,032.70x = 25,143,856,844.42
  5. Step 5: Solve for x
    x = 25,143,856,844.42/131,032.70
  6. Step 6: Final answer
    x = 191,889.94

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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.