Home / 158,542.01-218,660.92-139,381.05

Finding the Fourth Proportional to 158,542.01, 218,660.92 and 139,381.05

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Solution

The fourth proportional to 158,542.01, 218,660.92 and 139,381.05 is: 192,234.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,542.01 : 218,660.92 = 139,381.05 : x
  2. Step 2: Convert to fraction form
    158,542.01/218,660.92 = 139,381.05/x
  3. Step 3: Cross multiply
    158,542.01x = 218,660.92 × 139,381.05
  4. Step 4: Simplify right side
    158,542.01x = 30,477,189,095.09
  5. Step 5: Solve for x
    x = 30,477,189,095.09/158,542.01
  6. Step 6: Final answer
    x = 192,234.16

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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.