Home / 131,771.56-181,843.48-71,340.68

Finding the Fourth Proportional to 131,771.56, 181,843.48 and 71,340.68

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Solution

The fourth proportional to 131,771.56, 181,843.48 and 71,340.68 is: 98,449.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,771.56 : 181,843.48 = 71,340.68 : x
  2. Step 2: Convert to fraction form
    131,771.56/181,843.48 = 71,340.68/x
  3. Step 3: Cross multiply
    131,771.56x = 181,843.48 × 71,340.68
  4. Step 4: Simplify right side
    131,771.56x = 12,972,837,516.77
  5. Step 5: Solve for x
    x = 12,972,837,516.77/131,771.56
  6. Step 6: Final answer
    x = 98,449.45

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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.