Home / 235,919.38-325,572.46-128,489.32

Finding the Fourth Proportional to 235,919.38, 325,572.46 and 128,489.32

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Solution

The fourth proportional to 235,919.38, 325,572.46 and 128,489.32 is: 177,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,919.38 : 325,572.46 = 128,489.32 : x
  2. Step 2: Convert to fraction form
    235,919.38/325,572.46 = 128,489.32/x
  3. Step 3: Cross multiply
    235,919.38x = 325,572.46 × 128,489.32
  4. Step 4: Simplify right side
    235,919.38x = 41,832,583,996.13
  5. Step 5: Solve for x
    x = 41,832,583,996.13/235,919.38
  6. Step 6: Final answer
    x = 177,317.29

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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.