Home / 235,683.32-325,249.77-128,260.16

Finding the Fourth Proportional to 235,683.32, 325,249.77 and 128,260.16

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Solution

The fourth proportional to 235,683.32, 325,249.77 and 128,260.16 is: 177,002.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,683.32 : 325,249.77 = 128,260.16 : x
  2. Step 2: Convert to fraction form
    235,683.32/325,249.77 = 128,260.16/x
  3. Step 3: Cross multiply
    235,683.32x = 325,249.77 × 128,260.16
  4. Step 4: Simplify right side
    235,683.32x = 41,716,587,540.16
  5. Step 5: Solve for x
    x = 41,716,587,540.16/235,683.32
  6. Step 6: Final answer
    x = 177,002.72

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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.