Home / 113,974.90-170,908.66-66,603.67

Finding the Fourth Proportional to 113,974.90, 170,908.66 and 66,603.67

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Solution

The fourth proportional to 113,974.90, 170,908.66 and 66,603.67 is: 99,874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,974.90 : 170,908.66 = 66,603.67 : x
  2. Step 2: Convert to fraction form
    113,974.90/170,908.66 = 66,603.67/x
  3. Step 3: Cross multiply
    113,974.90x = 170,908.66 × 66,603.67
  4. Step 4: Simplify right side
    113,974.90x = 11,383,143,990.78
  5. Step 5: Solve for x
    x = 11,383,143,990.78/113,974.90
  6. Step 6: Final answer
    x = 99,874.13

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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.