Home / 131,440.70-197,161.05-89,968.70

Finding the Fourth Proportional to 131,440.70, 197,161.05 and 89,968.70

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Solution

The fourth proportional to 131,440.70, 197,161.05 and 89,968.70 is: 134,953.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,440.70 : 197,161.05 = 89,968.70 : x
  2. Step 2: Convert to fraction form
    131,440.70/197,161.05 = 89,968.70/x
  3. Step 3: Cross multiply
    131,440.70x = 197,161.05 × 89,968.70
  4. Step 4: Simplify right side
    131,440.70x = 17,738,323,359.14
  5. Step 5: Solve for x
    x = 17,738,323,359.14/131,440.70
  6. Step 6: Final answer
    x = 134,953.05

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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.