Home / 131,056.29-196,250.90-86,616.45

Finding the Fourth Proportional to 131,056.29, 196,250.90 and 86,616.45

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Solution

The fourth proportional to 131,056.29, 196,250.90 and 86,616.45 is: 129,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,056.29 : 196,250.90 = 86,616.45 : x
  2. Step 2: Convert to fraction form
    131,056.29/196,250.90 = 86,616.45/x
  3. Step 3: Cross multiply
    131,056.29x = 196,250.90 × 86,616.45
  4. Step 4: Simplify right side
    131,056.29x = 16,998,555,834.22
  5. Step 5: Solve for x
    x = 16,998,555,834.22/131,056.29
  6. Step 6: Final answer
    x = 129,704.23

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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.