Home / 123,194.36-170,008.20-66,605.74

Finding the Fourth Proportional to 123,194.36, 170,008.20 and 66,605.74

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Solution

The fourth proportional to 123,194.36, 170,008.20 and 66,605.74 is: 91,915.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,194.36 : 170,008.20 = 66,605.74 : x
  2. Step 2: Convert to fraction form
    123,194.36/170,008.20 = 66,605.74/x
  3. Step 3: Cross multiply
    123,194.36x = 170,008.20 × 66,605.74
  4. Step 4: Simplify right side
    123,194.36x = 11,323,521,967.07
  5. Step 5: Solve for x
    x = 11,323,521,967.07/123,194.36
  6. Step 6: Final answer
    x = 91,915.91

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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.