Home / 158,245.89-218,363.07-90,257.73

Finding the Fourth Proportional to 158,245.89, 218,363.07 and 90,257.73

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Solution

The fourth proportional to 158,245.89, 218,363.07 and 90,257.73 is: 124,546.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,245.89 : 218,363.07 = 90,257.73 : x
  2. Step 2: Convert to fraction form
    158,245.89/218,363.07 = 90,257.73/x
  3. Step 3: Cross multiply
    158,245.89x = 218,363.07 × 90,257.73
  4. Step 4: Simplify right side
    158,245.89x = 19,708,954,533.64
  5. Step 5: Solve for x
    x = 19,708,954,533.64/158,245.89
  6. Step 6: Final answer
    x = 124,546.39

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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.