Home / 152,138.38-228,261.64-67,890.88

Finding the Fourth Proportional to 152,138.38, 228,261.64 and 67,890.88

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Solution

The fourth proportional to 152,138.38, 228,261.64 and 67,890.88 is: 101,860.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,138.38 : 228,261.64 = 67,890.88 : x
  2. Step 2: Convert to fraction form
    152,138.38/228,261.64 = 67,890.88/x
  3. Step 3: Cross multiply
    152,138.38x = 228,261.64 × 67,890.88
  4. Step 4: Simplify right side
    152,138.38x = 15,496,883,609.84
  5. Step 5: Solve for x
    x = 15,496,883,609.84/152,138.38
  6. Step 6: Final answer
    x = 101,860.45

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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.