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Finding the Fourth Proportional to 108,108.56, 162,163.41 and 70,904.23

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Solution

The fourth proportional to 108,108.56, 162,163.41 and 70,904.23 is: 106,356.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,108.56 : 162,163.41 = 70,904.23 : x
  2. Step 2: Convert to fraction form
    108,108.56/162,163.41 = 70,904.23/x
  3. Step 3: Cross multiply
    108,108.56x = 162,163.41 × 70,904.23
  4. Step 4: Simplify right side
    108,108.56x = 11,498,072,188.82
  5. Step 5: Solve for x
    x = 11,498,072,188.82/108,108.56
  6. Step 6: Final answer
    x = 106,356.72

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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.