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Finding the Fourth Proportional to 189,093.60, 260,946.86 and 104,208.84

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Solution

The fourth proportional to 189,093.60, 260,946.86 and 104,208.84 is: 143,806.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,093.60 : 260,946.86 = 104,208.84 : x
  2. Step 2: Convert to fraction form
    189,093.60/260,946.86 = 104,208.84/x
  3. Step 3: Cross multiply
    189,093.60x = 260,946.86 × 104,208.84
  4. Step 4: Simplify right side
    189,093.60x = 27,192,969,061.20
  5. Step 5: Solve for x
    x = 27,192,969,061.20/189,093.60
  6. Step 6: Final answer
    x = 143,806.92

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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.