Home / 123,089.25-169,863.30-66,500.76

Finding the Fourth Proportional to 123,089.25, 169,863.30 and 66,500.76

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Solution

The fourth proportional to 123,089.25, 169,863.30 and 66,500.76 is: 91,771.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,089.25 : 169,863.30 = 66,500.76 : x
  2. Step 2: Convert to fraction form
    123,089.25/169,863.30 = 66,500.76/x
  3. Step 3: Cross multiply
    123,089.25x = 169,863.30 × 66,500.76
  4. Step 4: Simplify right side
    123,089.25x = 11,296,038,546.11
  5. Step 5: Solve for x
    x = 11,296,038,546.11/123,089.25
  6. Step 6: Final answer
    x = 91,771.12

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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.