Home / 168,120.10-232,002.57-91,639.90

Finding the Fourth Proportional to 168,120.10, 232,002.57 and 91,639.90

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Solution

The fourth proportional to 168,120.10, 232,002.57 and 91,639.90 is: 126,461.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,120.10 : 232,002.57 = 91,639.90 : x
  2. Step 2: Convert to fraction form
    168,120.10/232,002.57 = 91,639.90/x
  3. Step 3: Cross multiply
    168,120.10x = 232,002.57 × 91,639.90
  4. Step 4: Simplify right side
    168,120.10x = 21,260,692,314.54
  5. Step 5: Solve for x
    x = 21,260,692,314.54/168,120.10
  6. Step 6: Final answer
    x = 126,461.34

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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.