Home / 192,256.14-288,384.15-139,998.18

Finding the Fourth Proportional to 192,256.14, 288,384.15 and 139,998.18

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Solution

The fourth proportional to 192,256.14, 288,384.15 and 139,998.18 is: 209,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,256.14 : 288,384.15 = 139,998.18 : x
  2. Step 2: Convert to fraction form
    192,256.14/288,384.15 = 139,998.18/x
  3. Step 3: Cross multiply
    192,256.14x = 288,384.15 × 139,998.18
  4. Step 4: Simplify right side
    192,256.14x = 40,373,256,140.85
  5. Step 5: Solve for x
    x = 40,373,256,140.85/192,256.14
  6. Step 6: Final answer
    x = 209,997.23

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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.