Home / 103,081.91-154,682.33-55,697.13

Finding the Fourth Proportional to 103,081.91, 154,682.33 and 55,697.13

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Solution

The fourth proportional to 103,081.91, 154,682.33 and 55,697.13 is: 83,577.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,081.91 : 154,682.33 = 55,697.13 : x
  2. Step 2: Convert to fraction form
    103,081.91/154,682.33 = 55,697.13/x
  3. Step 3: Cross multiply
    103,081.91x = 154,682.33 × 55,697.13
  4. Step 4: Simplify right side
    103,081.91x = 8,615,361,564.23
  5. Step 5: Solve for x
    x = 8,615,361,564.23/103,081.91
  6. Step 6: Final answer
    x = 83,577.83

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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.