Home / 192,344.40-287,998.20-139,467.60

Finding the Fourth Proportional to 192,344.40, 287,998.20 and 139,467.60

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Solution

The fourth proportional to 192,344.40, 287,998.20 and 139,467.60 is: 208,825.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,344.40 : 287,998.20 = 139,467.60 : x
  2. Step 2: Convert to fraction form
    192,344.40/287,998.20 = 139,467.60/x
  3. Step 3: Cross multiply
    192,344.40x = 287,998.20 × 139,467.60
  4. Step 4: Simplify right side
    192,344.40x = 40,166,417,758.32
  5. Step 5: Solve for x
    x = 40,166,417,758.32/192,344.40
  6. Step 6: Final answer
    x = 208,825.51

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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.