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Finding the Fourth Proportional to 104,456.62, 144,147.90 and 56,709.55

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Solution

The fourth proportional to 104,456.62, 144,147.90 and 56,709.55 is: 78,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,456.62 : 144,147.90 = 56,709.55 : x
  2. Step 2: Convert to fraction form
    104,456.62/144,147.90 = 56,709.55/x
  3. Step 3: Cross multiply
    104,456.62x = 144,147.90 × 56,709.55
  4. Step 4: Simplify right side
    104,456.62x = 8,174,562,542.45
  5. Step 5: Solve for x
    x = 8,174,562,542.45/104,456.62
  6. Step 6: Final answer
    x = 78,257.97

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1.5x scale

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.