Home / 325,154.88-487,704.72-111,905.28

Finding the Fourth Proportional to 325,154.88, 487,704.72 and 111,905.28

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Solution

The fourth proportional to 325,154.88, 487,704.72 and 111,905.28 is: 167,848.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,154.88 : 487,704.72 = 111,905.28 : x
  2. Step 2: Convert to fraction form
    325,154.88/487,704.72 = 111,905.28/x
  3. Step 3: Cross multiply
    325,154.88x = 487,704.72 × 111,905.28
  4. Step 4: Simplify right side
    325,154.88x = 54,576,733,248.92
  5. Step 5: Solve for x
    x = 54,576,733,248.92/325,154.88
  6. Step 6: Final answer
    x = 167,848.42

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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.