Home / 108,538.08-162,610.25-80,145.32

Finding the Fourth Proportional to 108,538.08, 162,610.25 and 80,145.32

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Solution

The fourth proportional to 108,538.08, 162,610.25 and 80,145.32 is: 120,072.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,538.08 : 162,610.25 = 80,145.32 : x
  2. Step 2: Convert to fraction form
    108,538.08/162,610.25 = 80,145.32/x
  3. Step 3: Cross multiply
    108,538.08x = 162,610.25 × 80,145.32
  4. Step 4: Simplify right side
    108,538.08x = 13,032,450,521.53
  5. Step 5: Solve for x
    x = 13,032,450,521.53/108,538.08
  6. Step 6: Final answer
    x = 120,072.61

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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.