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Finding the Fourth Proportional to 158,179.97, 218,288.37 and 86,560.00

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Solution

The fourth proportional to 158,179.97, 218,288.37 and 86,560.00 is: 119,452.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,179.97 : 218,288.37 = 86,560.00 : x
  2. Step 2: Convert to fraction form
    158,179.97/218,288.37 = 86,560.00/x
  3. Step 3: Cross multiply
    158,179.97x = 218,288.37 × 86,560.00
  4. Step 4: Simplify right side
    158,179.97x = 18,895,039,782.96
  5. Step 5: Solve for x
    x = 18,895,039,782.96/158,179.97
  6. Step 6: Final answer
    x = 119,452.80

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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.