Home / 172,719.35-258,967.76-72,852.83

Finding the Fourth Proportional to 172,719.35, 258,967.76 and 72,852.83

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Solution

The fourth proportional to 172,719.35, 258,967.76 and 72,852.83 is: 109,232.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,719.35 : 258,967.76 = 72,852.83 : x
  2. Step 2: Convert to fraction form
    172,719.35/258,967.76 = 72,852.83/x
  3. Step 3: Cross multiply
    172,719.35x = 258,967.76 × 72,852.83
  4. Step 4: Simplify right side
    172,719.35x = 18,866,534,477.92
  5. Step 5: Solve for x
    x = 18,866,534,477.92/172,719.35
  6. Step 6: Final answer
    x = 109,232.31

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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.