Home / 129,945.75-179,325.14-73,360.77

Finding the Fourth Proportional to 129,945.75, 179,325.14 and 73,360.77

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Solution

The fourth proportional to 129,945.75, 179,325.14 and 73,360.77 is: 101,237.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,945.75 : 179,325.14 = 73,360.77 : x
  2. Step 2: Convert to fraction form
    129,945.75/179,325.14 = 73,360.77/x
  3. Step 3: Cross multiply
    129,945.75x = 179,325.14 × 73,360.77
  4. Step 4: Simplify right side
    129,945.75x = 13,155,429,983.95
  5. Step 5: Solve for x
    x = 13,155,429,983.95/129,945.75
  6. Step 6: Final answer
    x = 101,237.86

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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.