Home / 123,500.85-170,431.17-66,912.22

Finding the Fourth Proportional to 123,500.85, 170,431.17 and 66,912.22

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Solution

The fourth proportional to 123,500.85, 170,431.17 and 66,912.22 is: 92,338.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,500.85 : 170,431.17 = 66,912.22 : x
  2. Step 2: Convert to fraction form
    123,500.85/170,431.17 = 66,912.22/x
  3. Step 3: Cross multiply
    123,500.85x = 170,431.17 × 66,912.22
  4. Step 4: Simplify right side
    123,500.85x = 11,403,927,941.90
  5. Step 5: Solve for x
    x = 11,403,927,941.90/123,500.85
  6. Step 6: Final answer
    x = 92,338.87

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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.