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Finding the Fourth Proportional to 158,049.59, 218,187.74 and 122,158.49

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Solution

The fourth proportional to 158,049.59, 218,187.74 and 122,158.49 is: 168,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,049.59 : 218,187.74 = 122,158.49 : x
  2. Step 2: Convert to fraction form
    158,049.59/218,187.74 = 122,158.49/x
  3. Step 3: Cross multiply
    158,049.59x = 218,187.74 × 122,158.49
  4. Step 4: Simplify right side
    158,049.59x = 26,653,484,069.37
  5. Step 5: Solve for x
    x = 26,653,484,069.37/158,049.59
  6. Step 6: Final answer
    x = 168,640.01

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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.