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Finding the Fourth Proportional to 158,504.40, 218,735.76 and 86,884.44

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Solution

The fourth proportional to 158,504.40, 218,735.76 and 86,884.44 is: 119,900.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,504.40 : 218,735.76 = 86,884.44 : x
  2. Step 2: Convert to fraction form
    158,504.40/218,735.76 = 86,884.44/x
  3. Step 3: Cross multiply
    158,504.40x = 218,735.76 × 86,884.44
  4. Step 4: Simplify right side
    158,504.40x = 19,004,734,015.57
  5. Step 5: Solve for x
    x = 19,004,734,015.57/158,504.40
  6. Step 6: Final answer
    x = 119,900.36

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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.