Home / 128,566.77-192,900.92-39,827.19

Finding the Fourth Proportional to 128,566.77, 192,900.92 and 39,827.19

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Solution

The fourth proportional to 128,566.77, 192,900.92 and 39,827.19 is: 59,756.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,566.77 : 192,900.92 = 39,827.19 : x
  2. Step 2: Convert to fraction form
    128,566.77/192,900.92 = 39,827.19/x
  3. Step 3: Cross multiply
    128,566.77x = 192,900.92 × 39,827.19
  4. Step 4: Simplify right side
    128,566.77x = 7,682,702,228.27
  5. Step 5: Solve for x
    x = 7,682,702,228.27/128,566.77
  6. Step 6: Final answer
    x = 59,756.52

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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.