Home / 123,721.40-185,582.10-109,451.23

Finding the Fourth Proportional to 123,721.40, 185,582.10 and 109,451.23

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Solution

The fourth proportional to 123,721.40, 185,582.10 and 109,451.23 is: 164,176.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,721.40 : 185,582.10 = 109,451.23 : x
  2. Step 2: Convert to fraction form
    123,721.40/185,582.10 = 109,451.23/x
  3. Step 3: Cross multiply
    123,721.40x = 185,582.10 × 109,451.23
  4. Step 4: Simplify right side
    123,721.40x = 20,312,188,183.07
  5. Step 5: Solve for x
    x = 20,312,188,183.07/123,721.40
  6. Step 6: Final answer
    x = 164,176.84

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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.