Home / 107,721.54-161,621.19-37,611.18

Finding the Fourth Proportional to 107,721.54, 161,621.19 and 37,611.18

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Solution

The fourth proportional to 107,721.54, 161,621.19 and 37,611.18 is: 56,430.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,721.54 : 161,621.19 = 37,611.18 : x
  2. Step 2: Convert to fraction form
    107,721.54/161,621.19 = 37,611.18/x
  3. Step 3: Cross multiply
    107,721.54x = 161,621.19 × 37,611.18
  4. Step 4: Simplify right side
    107,721.54x = 6,078,763,668.90
  5. Step 5: Solve for x
    x = 6,078,763,668.90/107,721.54
  6. Step 6: Final answer
    x = 56,430.35

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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.