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Finding the Fourth Proportional to 124,242.29, 171,249.60 and 87,896.78

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Solution

The fourth proportional to 124,242.29, 171,249.60 and 87,896.78 is: 121,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,242.29 : 171,249.60 = 87,896.78 : x
  2. Step 2: Convert to fraction form
    124,242.29/171,249.60 = 87,896.78/x
  3. Step 3: Cross multiply
    124,242.29x = 171,249.60 × 87,896.78
  4. Step 4: Simplify right side
    124,242.29x = 15,052,289,174.02
  5. Step 5: Solve for x
    x = 15,052,289,174.02/124,242.29
  6. Step 6: Final answer
    x = 121,152.70

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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.