Home / 123,353.40-170,228.30-69,640.60

Finding the Fourth Proportional to 123,353.40, 170,228.30 and 69,640.60

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Solution

The fourth proportional to 123,353.40, 170,228.30 and 69,640.60 is: 96,104.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,353.40 : 170,228.30 = 69,640.60 : x
  2. Step 2: Convert to fraction form
    123,353.40/170,228.30 = 69,640.60/x
  3. Step 3: Cross multiply
    123,353.40x = 170,228.30 × 69,640.60
  4. Step 4: Simplify right side
    123,353.40x = 11,854,800,948.98
  5. Step 5: Solve for x
    x = 11,854,800,948.98/123,353.40
  6. Step 6: Final answer
    x = 96,104.37

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1.5x scale

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.