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Finding the Fourth Proportional to 128,496.24, 192,826.60 and 69,373.12

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Solution

The fourth proportional to 128,496.24, 192,826.60 and 69,373.12 is: 104,104.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,496.24 : 192,826.60 = 69,373.12 : x
  2. Step 2: Convert to fraction form
    128,496.24/192,826.60 = 69,373.12/x
  3. Step 3: Cross multiply
    128,496.24x = 192,826.60 × 69,373.12
  4. Step 4: Simplify right side
    128,496.24x = 13,376,982,860.99
  5. Step 5: Solve for x
    x = 13,376,982,860.99/128,496.24
  6. Step 6: Final answer
    x = 104,104.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.