Home / 108,186.22-162,279.39-70,777.72

Finding the Fourth Proportional to 108,186.22, 162,279.39 and 70,777.72

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Solution

The fourth proportional to 108,186.22, 162,279.39 and 70,777.72 is: 106,166.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,186.22 : 162,279.39 = 70,777.72 : x
  2. Step 2: Convert to fraction form
    108,186.22/162,279.39 = 70,777.72/x
  3. Step 3: Cross multiply
    108,186.22x = 162,279.39 × 70,777.72
  4. Step 4: Simplify right side
    108,186.22x = 11,485,764,415.79
  5. Step 5: Solve for x
    x = 11,485,764,415.79/108,186.22
  6. Step 6: Final answer
    x = 106,166.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.