Home / 108,186.72-162,280.14-70,778.22

Finding the Fourth Proportional to 108,186.72, 162,280.14 and 70,778.22

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Solution

The fourth proportional to 108,186.72, 162,280.14 and 70,778.22 is: 106,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,186.72 : 162,280.14 = 70,778.22 : x
  2. Step 2: Convert to fraction form
    108,186.72/162,280.14 = 70,778.22/x
  3. Step 3: Cross multiply
    108,186.72x = 162,280.14 × 70,778.22
  4. Step 4: Simplify right side
    108,186.72x = 11,485,899,450.55
  5. Step 5: Solve for x
    x = 11,485,899,450.55/108,186.72
  6. Step 6: Final answer
    x = 106,167.37

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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.