Home / 131,879.35-181,993.26-71,451.49

Finding the Fourth Proportional to 131,879.35, 181,993.26 and 71,451.49

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Solution

The fourth proportional to 131,879.35, 181,993.26 and 71,451.49 is: 98,602.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,879.35 : 181,993.26 = 71,451.49 : x
  2. Step 2: Convert to fraction form
    131,879.35/181,993.26 = 71,451.49/x
  3. Step 3: Cross multiply
    131,879.35x = 181,993.26 × 71,451.49
  4. Step 4: Simplify right side
    131,879.35x = 13,003,689,596.96
  5. Step 5: Solve for x
    x = 13,003,689,596.96/131,879.35
  6. Step 6: Final answer
    x = 98,602.92

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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.