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Finding the Fourth Proportional to 189,073.72, 260,933.34 and 104,190.76

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Solution

The fourth proportional to 189,073.72, 260,933.34 and 104,190.76 is: 143,789.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,073.72 : 260,933.34 = 104,190.76 : x
  2. Step 2: Convert to fraction form
    189,073.72/260,933.34 = 104,190.76/x
  3. Step 3: Cross multiply
    189,073.72x = 260,933.34 × 104,190.76
  4. Step 4: Simplify right side
    189,073.72x = 27,186,843,003.94
  5. Step 5: Solve for x
    x = 27,186,843,003.94/189,073.72
  6. Step 6: Final answer
    x = 143,789.64

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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.