Home / 129,830.50-179,162.85-73,237.42

Finding the Fourth Proportional to 129,830.50, 179,162.85 and 73,237.42

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Solution

The fourth proportional to 129,830.50, 179,162.85 and 73,237.42 is: 101,065.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,830.50 : 179,162.85 = 73,237.42 : x
  2. Step 2: Convert to fraction form
    129,830.50/179,162.85 = 73,237.42/x
  3. Step 3: Cross multiply
    129,830.50x = 179,162.85 × 73,237.42
  4. Step 4: Simplify right side
    129,830.50x = 13,121,424,893.85
  5. Step 5: Solve for x
    x = 13,121,424,893.85/129,830.50
  6. Step 6: Final answer
    x = 101,065.81

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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.