Home / 235,816.40-325,432.52-128,392.32

Finding the Fourth Proportional to 235,816.40, 325,432.52 and 128,392.32

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Solution

The fourth proportional to 235,816.40, 325,432.52 and 128,392.32 is: 177,184.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,816.40 : 325,432.52 = 128,392.32 : x
  2. Step 2: Convert to fraction form
    235,816.40/325,432.52 = 128,392.32/x
  3. Step 3: Cross multiply
    235,816.40x = 325,432.52 × 128,392.32
  4. Step 4: Simplify right side
    235,816.40x = 41,783,036,246.25
  5. Step 5: Solve for x
    x = 41,783,036,246.25/235,816.40
  6. Step 6: Final answer
    x = 177,184.61

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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.