Home / 133,143.26-183,738.95-75,779.77

Finding the Fourth Proportional to 133,143.26, 183,738.95 and 75,779.77

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Solution

The fourth proportional to 133,143.26, 183,738.95 and 75,779.77 is: 104,576.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,143.26 : 183,738.95 = 75,779.77 : x
  2. Step 2: Convert to fraction form
    133,143.26/183,738.95 = 75,779.77/x
  3. Step 3: Cross multiply
    133,143.26x = 183,738.95 × 75,779.77
  4. Step 4: Simplify right side
    133,143.26x = 13,923,695,371.04
  5. Step 5: Solve for x
    x = 13,923,695,371.04/133,143.26
  6. Step 6: Final answer
    x = 104,576.79

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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.