Home / 158,273.88-218,409.66-86,640.18

Finding the Fourth Proportional to 158,273.88, 218,409.66 and 86,640.18

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Solution

The fourth proportional to 158,273.88, 218,409.66 and 86,640.18 is: 119,558.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,273.88 : 218,409.66 = 86,640.18 : x
  2. Step 2: Convert to fraction form
    158,273.88/218,409.66 = 86,640.18/x
  3. Step 3: Cross multiply
    158,273.88x = 218,409.66 × 86,640.18
  4. Step 4: Simplify right side
    158,273.88x = 18,923,052,256.14
  5. Step 5: Solve for x
    x = 18,923,052,256.14/158,273.88
  6. Step 6: Final answer
    x = 119,558.91

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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.