Home / 149,176.13-205,863.08-82,108.13

Finding the Fourth Proportional to 149,176.13, 205,863.08 and 82,108.13

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Solution

The fourth proportional to 149,176.13, 205,863.08 and 82,108.13 is: 113,309.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,176.13 : 205,863.08 = 82,108.13 : x
  2. Step 2: Convert to fraction form
    149,176.13/205,863.08 = 82,108.13/x
  3. Step 3: Cross multiply
    149,176.13x = 205,863.08 × 82,108.13
  4. Step 4: Simplify right side
    149,176.13x = 16,903,031,094.98
  5. Step 5: Solve for x
    x = 16,903,031,094.98/149,176.13
  6. Step 6: Final answer
    x = 113,309.22

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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.