Home / 133,627.38-184,421.31-77,040.78

Finding the Fourth Proportional to 133,627.38, 184,421.31 and 77,040.78

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Solution

The fourth proportional to 133,627.38, 184,421.31 and 77,040.78 is: 106,325.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,627.38 : 184,421.31 = 77,040.78 : x
  2. Step 2: Convert to fraction form
    133,627.38/184,421.31 = 77,040.78/x
  3. Step 3: Cross multiply
    133,627.38x = 184,421.31 × 77,040.78
  4. Step 4: Simplify right side
    133,627.38x = 14,207,961,571.02
  5. Step 5: Solve for x
    x = 14,207,961,571.02/133,627.38
  6. Step 6: Final answer
    x = 106,325.23

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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.