Home / 216,131.79-298,261.13-120,637.65

Finding the Fourth Proportional to 216,131.79, 298,261.13 and 120,637.65

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Solution

The fourth proportional to 216,131.79, 298,261.13 and 120,637.65 is: 166,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,131.79 : 298,261.13 = 120,637.65 : x
  2. Step 2: Convert to fraction form
    216,131.79/298,261.13 = 120,637.65/x
  3. Step 3: Cross multiply
    216,131.79x = 298,261.13 × 120,637.65
  4. Step 4: Simplify right side
    216,131.79x = 35,981,521,809.54
  5. Step 5: Solve for x
    x = 35,981,521,809.54/216,131.79
  6. Step 6: Final answer
    x = 166,479.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.