Home / 111,618.21-154,073.58-73,904.61

Finding the Fourth Proportional to 111,618.21, 154,073.58 and 73,904.61

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Solution

The fourth proportional to 111,618.21, 154,073.58 and 73,904.61 is: 102,015.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,618.21 : 154,073.58 = 73,904.61 : x
  2. Step 2: Convert to fraction form
    111,618.21/154,073.58 = 73,904.61/x
  3. Step 3: Cross multiply
    111,618.21x = 154,073.58 × 73,904.61
  4. Step 4: Simplify right side
    111,618.21x = 11,386,747,841.20
  5. Step 5: Solve for x
    x = 11,386,747,841.20/111,618.21
  6. Step 6: Final answer
    x = 102,015.14

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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.