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Finding the Fourth Proportional to 189,069.83, 260,918.12 and 104,189.93

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Solution

The fourth proportional to 189,069.83, 260,918.12 and 104,189.93 is: 143,783.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,069.83 : 260,918.12 = 104,189.93 : x
  2. Step 2: Convert to fraction form
    189,069.83/260,918.12 = 104,189.93/x
  3. Step 3: Cross multiply
    189,069.83x = 260,918.12 × 104,189.93
  4. Step 4: Simplify right side
    189,069.83x = 27,185,040,137.58
  5. Step 5: Solve for x
    x = 27,185,040,137.58/189,069.83
  6. Step 6: Final answer
    x = 143,783.07

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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.