Home / 133,142.86-183,738.39-75,779.37

Finding the Fourth Proportional to 133,142.86, 183,738.39 and 75,779.37

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Solution

The fourth proportional to 133,142.86, 183,738.39 and 75,779.37 is: 104,576.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,142.86 : 183,738.39 = 75,779.37 : x
  2. Step 2: Convert to fraction form
    133,142.86/183,738.39 = 75,779.37/x
  3. Step 3: Cross multiply
    133,142.86x = 183,738.39 × 75,779.37
  4. Step 4: Simplify right side
    133,142.86x = 13,923,579,439.01
  5. Step 5: Solve for x
    x = 13,923,579,439.01/133,142.86
  6. Step 6: Final answer
    x = 104,576.24

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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.