Home / 95,147.09-131,178.51-81,861.06

Finding the Fourth Proportional to 95,147.09, 131,178.51 and 81,861.06

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Solution

The fourth proportional to 95,147.09, 131,178.51 and 81,861.06 is: 112,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,147.09 : 131,178.51 = 81,861.06 : x
  2. Step 2: Convert to fraction form
    95,147.09/131,178.51 = 81,861.06/x
  3. Step 3: Cross multiply
    95,147.09x = 131,178.51 × 81,861.06
  4. Step 4: Simplify right side
    95,147.09x = 10,738,411,877.82
  5. Step 5: Solve for x
    x = 10,738,411,877.82/95,147.09
  6. Step 6: Final answer
    x = 112,861.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.