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Finding the Fourth Proportional to 122,681.70, 184,022.55 and 109,851.30

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Solution

The fourth proportional to 122,681.70, 184,022.55 and 109,851.30 is: 164,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,681.70 : 184,022.55 = 109,851.30 : x
  2. Step 2: Convert to fraction form
    122,681.70/184,022.55 = 109,851.30/x
  3. Step 3: Cross multiply
    122,681.70x = 184,022.55 × 109,851.30
  4. Step 4: Simplify right side
    122,681.70x = 20,215,116,346.82
  5. Step 5: Solve for x
    x = 20,215,116,346.82/122,681.70
  6. Step 6: Final answer
    x = 164,776.95

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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.