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Finding the Fourth Proportional to 104,436.56, 144,122.54 and 56,689.88

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Solution

The fourth proportional to 104,436.56, 144,122.54 and 56,689.88 is: 78,232.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,436.56 : 144,122.54 = 56,689.88 : x
  2. Step 2: Convert to fraction form
    104,436.56/144,122.54 = 56,689.88/x
  3. Step 3: Cross multiply
    104,436.56x = 144,122.54 × 56,689.88
  4. Step 4: Simplify right side
    104,436.56x = 8,170,289,497.90
  5. Step 5: Solve for x
    x = 8,170,289,497.90/104,436.56
  6. Step 6: Final answer
    x = 78,232.08

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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.