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Finding the Fourth Proportional to 158,054.95, 218,049.67 and 103,620.19

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Solution

The fourth proportional to 158,054.95, 218,049.67 and 103,620.19 is: 142,952.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,054.95 : 218,049.67 = 103,620.19 : x
  2. Step 2: Convert to fraction form
    158,054.95/218,049.67 = 103,620.19/x
  3. Step 3: Cross multiply
    158,054.95x = 218,049.67 × 103,620.19
  4. Step 4: Simplify right side
    158,054.95x = 22,594,348,234.84
  5. Step 5: Solve for x
    x = 22,594,348,234.84/158,054.95
  6. Step 6: Final answer
    x = 142,952.49

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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.