Home / 172,582.24-238,116.96-100,979.92

Finding the Fourth Proportional to 172,582.24, 238,116.96 and 100,979.92

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Solution

The fourth proportional to 172,582.24, 238,116.96 and 100,979.92 is: 139,325.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,582.24 : 238,116.96 = 100,979.92 : x
  2. Step 2: Convert to fraction form
    172,582.24/238,116.96 = 100,979.92/x
  3. Step 3: Cross multiply
    172,582.24x = 238,116.96 × 100,979.92
  4. Step 4: Simplify right side
    172,582.24x = 24,045,031,571.44
  5. Step 5: Solve for x
    x = 24,045,031,571.44/172,582.24
  6. Step 6: Final answer
    x = 139,325.06

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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.