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Finding the Fourth Proportional to 189,080.76, 260,930.88 and 104,197.80

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Solution

The fourth proportional to 189,080.76, 260,930.88 and 104,197.80 is: 143,792.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,080.76 : 260,930.88 = 104,197.80 : x
  2. Step 2: Convert to fraction form
    189,080.76/260,930.88 = 104,197.80/x
  3. Step 3: Cross multiply
    189,080.76x = 260,930.88 × 104,197.80
  4. Step 4: Simplify right side
    189,080.76x = 27,188,423,648.06
  5. Step 5: Solve for x
    x = 27,188,423,648.06/189,080.76
  6. Step 6: Final answer
    x = 143,792.65

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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.