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Finding the Fourth Proportional to 190,058.73, 262,277.69 and 109,486

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Solution

The fourth proportional to 190,058.73, 262,277.69 and 109,486 is: 151,088.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,058.73 : 262,277.69 = 109,486 : x
  2. Step 2: Convert to fraction form
    190,058.73/262,277.69 = 109,486/x
  3. Step 3: Cross multiply
    190,058.73x = 262,277.69 × 109,486
  4. Step 4: Simplify right side
    190,058.73x = 28,715,735,167.34
  5. Step 5: Solve for x
    x = 28,715,735,167.34/190,058.73
  6. Step 6: Final answer
    x = 151,088.75

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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.