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Finding the Fourth Proportional to 104,156.16, 143,735.61 and 56,409.56

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Solution

The fourth proportional to 104,156.16, 143,735.61 and 56,409.56 is: 77,845.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,156.16 : 143,735.61 = 56,409.56 : x
  2. Step 2: Convert to fraction form
    104,156.16/143,735.61 = 56,409.56/x
  3. Step 3: Cross multiply
    104,156.16x = 143,735.61 × 56,409.56
  4. Step 4: Simplify right side
    104,156.16x = 8,108,062,516.43
  5. Step 5: Solve for x
    x = 8,108,062,516.43/104,156.16
  6. Step 6: Final answer
    x = 77,845.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.