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Finding the Fourth Proportional to 104,658.35, 144,422.60 and 56,911.68

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Solution

The fourth proportional to 104,658.35, 144,422.60 and 56,911.68 is: 78,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,658.35 : 144,422.60 = 56,911.68 : x
  2. Step 2: Convert to fraction form
    104,658.35/144,422.60 = 56,911.68/x
  3. Step 3: Cross multiply
    104,658.35x = 144,422.60 × 56,911.68
  4. Step 4: Simplify right side
    104,658.35x = 8,219,332,511.41
  5. Step 5: Solve for x
    x = 8,219,332,511.41/104,658.35
  6. Step 6: Final answer
    x = 78,534.90

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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.