Home / 108,707.11-150,017.37-65,680.63

Finding the Fourth Proportional to 108,707.11, 150,017.37 and 65,680.63

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Solution

The fourth proportional to 108,707.11, 150,017.37 and 65,680.63 is: 90,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,707.11 : 150,017.37 = 65,680.63 : x
  2. Step 2: Convert to fraction form
    108,707.11/150,017.37 = 65,680.63/x
  3. Step 3: Cross multiply
    108,707.11x = 150,017.37 × 65,680.63
  4. Step 4: Simplify right side
    108,707.11x = 9,853,235,372.54
  5. Step 5: Solve for x
    x = 9,853,235,372.54/108,707.11
  6. Step 6: Final answer
    x = 90,640.21

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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.