Home / 128,599.14-192,949.29-39,859.50

Finding the Fourth Proportional to 128,599.14, 192,949.29 and 39,859.50

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Solution

The fourth proportional to 128,599.14, 192,949.29 and 39,859.50 is: 59,804.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,599.14 : 192,949.29 = 39,859.50 : x
  2. Step 2: Convert to fraction form
    128,599.14/192,949.29 = 39,859.50/x
  3. Step 3: Cross multiply
    128,599.14x = 192,949.29 × 39,859.50
  4. Step 4: Simplify right side
    128,599.14x = 7,690,862,224.76
  5. Step 5: Solve for x
    x = 7,690,862,224.76/128,599.14
  6. Step 6: Final answer
    x = 59,804.93

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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.