Home / 113,735.70-170,603.55-80,493.30

Finding the Fourth Proportional to 113,735.70, 170,603.55 and 80,493.30

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Solution

The fourth proportional to 113,735.70, 170,603.55 and 80,493.30 is: 120,739.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,735.70 : 170,603.55 = 80,493.30 : x
  2. Step 2: Convert to fraction form
    113,735.70/170,603.55 = 80,493.30/x
  3. Step 3: Cross multiply
    113,735.70x = 170,603.55 × 80,493.30
  4. Step 4: Simplify right side
    113,735.70x = 13,732,442,731.22
  5. Step 5: Solve for x
    x = 13,732,442,731.22/113,735.70
  6. Step 6: Final answer
    x = 120,739.95

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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.