Home / 172,339.68-258,580.76-76,226.36

Finding the Fourth Proportional to 172,339.68, 258,580.76 and 76,226.36

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Solution

The fourth proportional to 172,339.68, 258,580.76 and 76,226.36 is: 114,371.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,339.68 : 258,580.76 = 76,226.36 : x
  2. Step 2: Convert to fraction form
    172,339.68/258,580.76 = 76,226.36/x
  3. Step 3: Cross multiply
    172,339.68x = 258,580.76 × 76,226.36
  4. Step 4: Simplify right side
    172,339.68x = 19,710,670,100.83
  5. Step 5: Solve for x
    x = 19,710,670,100.83/172,339.68
  6. Step 6: Final answer
    x = 114,371.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.