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Finding the Fourth Proportional to 116,344.80, 160,570.80 and 78,616.80

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Solution

The fourth proportional to 116,344.80, 160,570.80 and 78,616.80 is: 108,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,344.80 : 160,570.80 = 78,616.80 : x
  2. Step 2: Convert to fraction form
    116,344.80/160,570.80 = 78,616.80/x
  3. Step 3: Cross multiply
    116,344.80x = 160,570.80 × 78,616.80
  4. Step 4: Simplify right side
    116,344.80x = 12,623,562,469.44
  5. Step 5: Solve for x
    x = 12,623,562,469.44/116,344.80
  6. Step 6: Final answer
    x = 108,501.30

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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.