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Finding the Fourth Proportional to 189,009.56, 260,823.84 and 104,110.76

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Solution

The fourth proportional to 189,009.56, 260,823.84 and 104,110.76 is: 143,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,009.56 : 260,823.84 = 104,110.76 : x
  2. Step 2: Convert to fraction form
    189,009.56/260,823.84 = 104,110.76/x
  3. Step 3: Cross multiply
    189,009.56x = 260,823.84 × 104,110.76
  4. Step 4: Simplify right side
    189,009.56x = 27,154,568,208.52
  5. Step 5: Solve for x
    x = 27,154,568,208.52/189,009.56
  6. Step 6: Final answer
    x = 143,667.70

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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.