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Finding the Fourth Proportional to 123,077.80, 184,616.70 and 70,492.60

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Solution

The fourth proportional to 123,077.80, 184,616.70 and 70,492.60 is: 105,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,077.80 : 184,616.70 = 70,492.60 : x
  2. Step 2: Convert to fraction form
    123,077.80/184,616.70 = 70,492.60/x
  3. Step 3: Cross multiply
    123,077.80x = 184,616.70 × 70,492.60
  4. Step 4: Simplify right side
    123,077.80x = 13,014,111,186.42
  5. Step 5: Solve for x
    x = 13,014,111,186.42/123,077.80
  6. Step 6: Final answer
    x = 105,738.90

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