Home / 113,519.75-170,017.19-109,583.15

Finding the Fourth Proportional to 113,519.75, 170,017.19 and 109,583.15

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Solution

The fourth proportional to 113,519.75, 170,017.19 and 109,583.15 is: 164,121.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,519.75 : 170,017.19 = 109,583.15 : x
  2. Step 2: Convert to fraction form
    113,519.75/170,017.19 = 109,583.15/x
  3. Step 3: Cross multiply
    113,519.75x = 170,017.19 × 109,583.15
  4. Step 4: Simplify right side
    113,519.75x = 18,631,018,686.43
  5. Step 5: Solve for x
    x = 18,631,018,686.43/113,519.75
  6. Step 6: Final answer
    x = 164,121.39

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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.