Home / 129,117.69-193,638.87-50,213.16

Finding the Fourth Proportional to 129,117.69, 193,638.87 and 50,213.16

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Solution

The fourth proportional to 129,117.69, 193,638.87 and 50,213.16 is: 75,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,117.69 : 193,638.87 = 50,213.16 : x
  2. Step 2: Convert to fraction form
    129,117.69/193,638.87 = 50,213.16/x
  3. Step 3: Cross multiply
    129,117.69x = 193,638.87 × 50,213.16
  4. Step 4: Simplify right side
    129,117.69x = 9,723,219,561.53
  5. Step 5: Solve for x
    x = 9,723,219,561.53/129,117.69
  6. Step 6: Final answer
    x = 75,305.09

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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.