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Finding the Fourth Proportional to 104,064, 143,670.24 and 68,316.56

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Solution

The fourth proportional to 104,064, 143,670.24 and 68,316.56 is: 94,317.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,064 : 143,670.24 = 68,316.56 : x
  2. Step 2: Convert to fraction form
    104,064/143,670.24 = 68,316.56/x
  3. Step 3: Cross multiply
    104,064x = 143,670.24 × 68,316.56
  4. Step 4: Simplify right side
    104,064x = 9,815,056,571.17
  5. Step 5: Solve for x
    x = 9,815,056,571.17/104,064
  6. Step 6: Final answer
    x = 94,317.50

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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.