Home / 109,419.75-164,115.03-30,541.95

Finding the Fourth Proportional to 109,419.75, 164,115.03 and 30,541.95

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Solution

The fourth proportional to 109,419.75, 164,115.03 and 30,541.95 is: 45,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,419.75 : 164,115.03 = 30,541.95 : x
  2. Step 2: Convert to fraction form
    109,419.75/164,115.03 = 30,541.95/x
  3. Step 3: Cross multiply
    109,419.75x = 164,115.03 × 30,541.95
  4. Step 4: Simplify right side
    109,419.75x = 5,012,393,040.51
  5. Step 5: Solve for x
    x = 5,012,393,040.51/109,419.75
  6. Step 6: Final answer
    x = 45,808.85

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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.