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Finding the Fourth Proportional to 123,035.40, 184,553.10 and 78,529.95

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Solution

The fourth proportional to 123,035.40, 184,553.10 and 78,529.95 is: 117,794.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,035.40 : 184,553.10 = 78,529.95 : x
  2. Step 2: Convert to fraction form
    123,035.40/184,553.10 = 78,529.95/x
  3. Step 3: Cross multiply
    123,035.40x = 184,553.10 × 78,529.95
  4. Step 4: Simplify right side
    123,035.40x = 14,492,945,715.35
  5. Step 5: Solve for x
    x = 14,492,945,715.35/123,035.40
  6. Step 6: Final answer
    x = 117,794.93

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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.