Home / 325,159.32-487,617.76-111,867.60

Finding the Fourth Proportional to 325,159.32, 487,617.76 and 111,867.60

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Solution

The fourth proportional to 325,159.32, 487,617.76 and 111,867.60 is: 167,759.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,159.32 : 487,617.76 = 111,867.60 : x
  2. Step 2: Convert to fraction form
    325,159.32/487,617.76 = 111,867.60/x
  3. Step 3: Cross multiply
    325,159.32x = 487,617.76 × 111,867.60
  4. Step 4: Simplify right side
    325,159.32x = 54,548,628,528.58
  5. Step 5: Solve for x
    x = 54,548,628,528.58/325,159.32
  6. Step 6: Final answer
    x = 167,759.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.