Home / 128,406.23-192,594.75-49,513.85

Finding the Fourth Proportional to 128,406.23, 192,594.75 and 49,513.85

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Solution

The fourth proportional to 128,406.23, 192,594.75 and 49,513.85 is: 74,265.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,406.23 : 192,594.75 = 49,513.85 : x
  2. Step 2: Convert to fraction form
    128,406.23/192,594.75 = 49,513.85/x
  3. Step 3: Cross multiply
    128,406.23x = 192,594.75 × 49,513.85
  4. Step 4: Simplify right side
    128,406.23x = 9,536,106,599.31
  5. Step 5: Solve for x
    x = 9,536,106,599.31/128,406.23
  6. Step 6: Final answer
    x = 74,265.14

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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.