Home / 131,440.20-196,901.10-75,971.40

Finding the Fourth Proportional to 131,440.20, 196,901.10 and 75,971.40

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Solution

The fourth proportional to 131,440.20, 196,901.10 and 75,971.40 is: 113,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,440.20 : 196,901.10 = 75,971.40 : x
  2. Step 2: Convert to fraction form
    131,440.20/196,901.10 = 75,971.40/x
  3. Step 3: Cross multiply
    131,440.20x = 196,901.10 × 75,971.40
  4. Step 4: Simplify right side
    131,440.20x = 14,958,852,228.54
  5. Step 5: Solve for x
    x = 14,958,852,228.54/131,440.20
  6. Step 6: Final answer
    x = 113,807.28

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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.