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Finding the Fourth Proportional to 123,361.60, 184,744.08 and 70,611.28

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Solution

The fourth proportional to 123,361.60, 184,744.08 and 70,611.28 is: 105,746.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,361.60 : 184,744.08 = 70,611.28 : x
  2. Step 2: Convert to fraction form
    123,361.60/184,744.08 = 70,611.28/x
  3. Step 3: Cross multiply
    123,361.60x = 184,744.08 × 70,611.28
  4. Step 4: Simplify right side
    123,361.60x = 13,045,015,961.22
  5. Step 5: Solve for x
    x = 13,045,015,961.22/123,361.60
  6. Step 6: Final answer
    x = 105,746.16

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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.