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Finding the Fourth Proportional to 189,117.54, 260,993.88 and 104,234.40

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Solution

The fourth proportional to 189,117.54, 260,993.88 and 104,234.40 is: 143,849.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,117.54 : 260,993.88 = 104,234.40 : x
  2. Step 2: Convert to fraction form
    189,117.54/260,993.88 = 104,234.40/x
  3. Step 3: Cross multiply
    189,117.54x = 260,993.88 × 104,234.40
  4. Step 4: Simplify right side
    189,117.54x = 27,204,540,485.47
  5. Step 5: Solve for x
    x = 27,204,540,485.47/189,117.54
  6. Step 6: Final answer
    x = 143,849.91

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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.