Home / 133,142.11-183,737.36-75,778.62

Finding the Fourth Proportional to 133,142.11, 183,737.36 and 75,778.62

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Solution

The fourth proportional to 133,142.11, 183,737.36 and 75,778.62 is: 104,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,142.11 : 183,737.36 = 75,778.62 : x
  2. Step 2: Convert to fraction form
    133,142.11/183,737.36 = 75,778.62/x
  3. Step 3: Cross multiply
    133,142.11x = 183,737.36 × 75,778.62
  4. Step 4: Simplify right side
    133,142.11x = 13,923,362,285.66
  5. Step 5: Solve for x
    x = 13,923,362,285.66/133,142.11
  6. Step 6: Final answer
    x = 104,575.20

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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.