Home / 192,248.13-288,121.38-139,119.07

Finding the Fourth Proportional to 192,248.13, 288,121.38 and 139,119.07

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Solution

The fourth proportional to 192,248.13, 288,121.38 and 139,119.07 is: 208,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,248.13 : 288,121.38 = 139,119.07 : x
  2. Step 2: Convert to fraction form
    192,248.13/288,121.38 = 139,119.07/x
  3. Step 3: Cross multiply
    192,248.13x = 288,121.38 × 139,119.07
  4. Step 4: Simplify right side
    192,248.13x = 40,083,178,122.22
  5. Step 5: Solve for x
    x = 40,083,178,122.22/192,248.13
  6. Step 6: Final answer
    x = 208,497.10

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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.