Home / 123,155.03-169,954.13-66,566.40

Finding the Fourth Proportional to 123,155.03, 169,954.13 and 66,566.40

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Solution

The fourth proportional to 123,155.03, 169,954.13 and 66,566.40 is: 91,861.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,155.03 : 169,954.13 = 66,566.40 : x
  2. Step 2: Convert to fraction form
    123,155.03/169,954.13 = 66,566.40/x
  3. Step 3: Cross multiply
    123,155.03x = 169,954.13 × 66,566.40
  4. Step 4: Simplify right side
    123,155.03x = 11,313,234,599.23
  5. Step 5: Solve for x
    x = 11,313,234,599.23/123,155.03
  6. Step 6: Final answer
    x = 91,861.74

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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.