Home / 131,218.72-181,081.38-73,858.01

Finding the Fourth Proportional to 131,218.72, 181,081.38 and 73,858.01

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Solution

The fourth proportional to 131,218.72, 181,081.38 and 73,858.01 is: 101,923.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,218.72 : 181,081.38 = 73,858.01 : x
  2. Step 2: Convert to fraction form
    131,218.72/181,081.38 = 73,858.01/x
  3. Step 3: Cross multiply
    131,218.72x = 181,081.38 × 73,858.01
  4. Step 4: Simplify right side
    131,218.72x = 13,374,310,374.85
  5. Step 5: Solve for x
    x = 13,374,310,374.85/131,218.72
  6. Step 6: Final answer
    x = 101,923.80

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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.