Home / 131,704.21-181,751.81-71,274.86

Finding the Fourth Proportional to 131,704.21, 181,751.81 and 71,274.86

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Solution

The fourth proportional to 131,704.21, 181,751.81 and 71,274.86 is: 98,359.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,704.21 : 181,751.81 = 71,274.86 : x
  2. Step 2: Convert to fraction form
    131,704.21/181,751.81 = 71,274.86/x
  3. Step 3: Cross multiply
    131,704.21x = 181,751.81 × 71,274.86
  4. Step 4: Simplify right side
    131,704.21x = 12,954,334,812.50
  5. Step 5: Solve for x
    x = 12,954,334,812.50/131,704.21
  6. Step 6: Final answer
    x = 98,359.31

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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.