Home / 149,355.05-205,971.53-109,004.90

Finding the Fourth Proportional to 149,355.05, 205,971.53 and 109,004.90

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Solution

The fourth proportional to 149,355.05, 205,971.53 and 109,004.90 is: 150,325.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,355.05 : 205,971.53 = 109,004.90 : x
  2. Step 2: Convert to fraction form
    149,355.05/205,971.53 = 109,004.90/x
  3. Step 3: Cross multiply
    149,355.05x = 205,971.53 × 109,004.90
  4. Step 4: Simplify right side
    149,355.05x = 22,451,904,455.61
  5. Step 5: Solve for x
    x = 22,451,904,455.61/149,355.05
  6. Step 6: Final answer
    x = 150,325.72

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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.