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Finding the Fourth Proportional to 122,885.39, 184,328 and 70,257.97

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Solution

The fourth proportional to 122,885.39, 184,328 and 70,257.97 is: 105,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,885.39 : 184,328 = 70,257.97 : x
  2. Step 2: Convert to fraction form
    122,885.39/184,328 = 70,257.97/x
  3. Step 3: Cross multiply
    122,885.39x = 184,328 × 70,257.97
  4. Step 4: Simplify right side
    122,885.39x = 12,950,511,094.16
  5. Step 5: Solve for x
    x = 12,950,511,094.16/122,885.39
  6. Step 6: Final answer
    x = 105,386.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.