Home / 148,626.88-205,091.52-88,187.12

Finding the Fourth Proportional to 148,626.88, 205,091.52 and 88,187.12

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Solution

The fourth proportional to 148,626.88, 205,091.52 and 88,187.12 is: 121,690.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,626.88 : 205,091.52 = 88,187.12 : x
  2. Step 2: Convert to fraction form
    148,626.88/205,091.52 = 88,187.12/x
  3. Step 3: Cross multiply
    148,626.88x = 205,091.52 × 88,187.12
  4. Step 4: Simplify right side
    148,626.88x = 18,086,430,485.22
  5. Step 5: Solve for x
    x = 18,086,430,485.22/148,626.88
  6. Step 6: Final answer
    x = 121,690.17

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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.