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Finding the Fourth Proportional to 104,404.08, 144,078 and 56,657.41

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Solution

The fourth proportional to 104,404.08, 144,078 and 56,657.41 is: 78,187.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,404.08 : 144,078 = 56,657.41 : x
  2. Step 2: Convert to fraction form
    104,404.08/144,078 = 56,657.41/x
  3. Step 3: Cross multiply
    104,404.08x = 144,078 × 56,657.41
  4. Step 4: Simplify right side
    104,404.08x = 8,163,086,317.98
  5. Step 5: Solve for x
    x = 8,163,086,317.98/104,404.08
  6. Step 6: Final answer
    x = 78,187.43

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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.