Home / 123,115.09-184,680.85-38,878.69

Finding the Fourth Proportional to 123,115.09, 184,680.85 and 38,878.69

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Solution

The fourth proportional to 123,115.09, 184,680.85 and 38,878.69 is: 58,320.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,115.09 : 184,680.85 = 38,878.69 : x
  2. Step 2: Convert to fraction form
    123,115.09/184,680.85 = 38,878.69/x
  3. Step 3: Cross multiply
    123,115.09x = 184,680.85 × 38,878.69
  4. Step 4: Simplify right side
    123,115.09x = 7,180,149,516.09
  5. Step 5: Solve for x
    x = 7,180,149,516.09/123,115.09
  6. Step 6: Final answer
    x = 58,320.63

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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.