Home / 123,391.16-184,876.09-67,130.81

Finding the Fourth Proportional to 123,391.16, 184,876.09 and 67,130.81

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Solution

The fourth proportional to 123,391.16, 184,876.09 and 67,130.81 is: 100,581.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,391.16 : 184,876.09 = 67,130.81 : x
  2. Step 2: Convert to fraction form
    123,391.16/184,876.09 = 67,130.81/x
  3. Step 3: Cross multiply
    123,391.16x = 184,876.09 × 67,130.81
  4. Step 4: Simplify right side
    123,391.16x = 12,410,881,671.33
  5. Step 5: Solve for x
    x = 12,410,881,671.33/123,391.16
  6. Step 6: Final answer
    x = 100,581.61

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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.