Home / 158,301.81-218,456.37-86,683.23

Finding the Fourth Proportional to 158,301.81, 218,456.37 and 86,683.23

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Solution

The fourth proportional to 158,301.81, 218,456.37 and 86,683.23 is: 119,622.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,301.81 : 218,456.37 = 86,683.23 : x
  2. Step 2: Convert to fraction form
    158,301.81/218,456.37 = 86,683.23/x
  3. Step 3: Cross multiply
    158,301.81x = 218,456.37 × 86,683.23
  4. Step 4: Simplify right side
    158,301.81x = 18,936,503,765.68
  5. Step 5: Solve for x
    x = 18,936,503,765.68/158,301.81
  6. Step 6: Final answer
    x = 119,622.79

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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.