Home / 108,971.12-150,336.60-68,674.16

Finding the Fourth Proportional to 108,971.12, 150,336.60 and 68,674.16

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Solution

The fourth proportional to 108,971.12, 150,336.60 and 68,674.16 is: 94,742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,971.12 : 150,336.60 = 68,674.16 : x
  2. Step 2: Convert to fraction form
    108,971.12/150,336.60 = 68,674.16/x
  3. Step 3: Cross multiply
    108,971.12x = 150,336.60 × 68,674.16
  4. Step 4: Simplify right side
    108,971.12x = 10,324,239,722.26
  5. Step 5: Solve for x
    x = 10,324,239,722.26/108,971.12
  6. Step 6: Final answer
    x = 94,742.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.