Home / 123,353.57-170,227.77-66,764.81

Finding the Fourth Proportional to 123,353.57, 170,227.77 and 66,764.81

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Solution

The fourth proportional to 123,353.57, 170,227.77 and 66,764.81 is: 92,135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,353.57 : 170,227.77 = 66,764.81 : x
  2. Step 2: Convert to fraction form
    123,353.57/170,227.77 = 66,764.81/x
  3. Step 3: Cross multiply
    123,353.57x = 170,227.77 × 66,764.81
  4. Step 4: Simplify right side
    123,353.57x = 11,365,224,720.77
  5. Step 5: Solve for x
    x = 11,365,224,720.77/123,353.57
  6. Step 6: Final answer
    x = 92,135.35

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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.