Home / 129,992.00-179,386.72-72,632.45

Finding the Fourth Proportional to 129,992.00, 179,386.72 and 72,632.45

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Solution

The fourth proportional to 129,992.00, 179,386.72 and 72,632.45 is: 100,231.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,992.00 : 179,386.72 = 72,632.45 : x
  2. Step 2: Convert to fraction form
    129,992.00/179,386.72 = 72,632.45/x
  3. Step 3: Cross multiply
    129,992.00x = 179,386.72 × 72,632.45
  4. Step 4: Simplify right side
    129,992.00x = 13,029,297,237.95
  5. Step 5: Solve for x
    x = 13,029,297,237.95/129,992.00
  6. Step 6: Final answer
    x = 100,231.54

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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.