Home / 108,405.29-162,439.37-75,190.25

Finding the Fourth Proportional to 108,405.29, 162,439.37 and 75,190.25

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Solution

The fourth proportional to 108,405.29, 162,439.37 and 75,190.25 is: 112,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,405.29 : 162,439.37 = 75,190.25 : x
  2. Step 2: Convert to fraction form
    108,405.29/162,439.37 = 75,190.25/x
  3. Step 3: Cross multiply
    108,405.29x = 162,439.37 × 75,190.25
  4. Step 4: Simplify right side
    108,405.29x = 12,213,856,464.19
  5. Step 5: Solve for x
    x = 12,213,856,464.19/108,405.29
  6. Step 6: Final answer
    x = 112,668.45

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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.