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Finding the Fourth Proportional to 112,900.62, 169,321.62 and 53,618.34

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Solution

The fourth proportional to 112,900.62, 169,321.62 and 53,618.34 is: 80,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,900.62 : 169,321.62 = 53,618.34 : x
  2. Step 2: Convert to fraction form
    112,900.62/169,321.62 = 53,618.34/x
  3. Step 3: Cross multiply
    112,900.62x = 169,321.62 × 53,618.34
  4. Step 4: Simplify right side
    112,900.62x = 9,078,744,190.51
  5. Step 5: Solve for x
    x = 9,078,744,190.51/112,900.62
  6. Step 6: Final answer
    x = 80,413.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.