Home / 189,170.15-261,056.82-104,290.25

Finding the Fourth Proportional to 189,170.15, 261,056.82 and 104,290.25

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Solution

The fourth proportional to 189,170.15, 261,056.82 and 104,290.25 is: 143,921.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,170.15 : 261,056.82 = 104,290.25 : x
  2. Step 2: Convert to fraction form
    189,170.15/261,056.82 = 104,290.25/x
  3. Step 3: Cross multiply
    189,170.15x = 261,056.82 × 104,290.25
  4. Step 4: Simplify right side
    189,170.15x = 27,225,681,022.01
  5. Step 5: Solve for x
    x = 27,225,681,022.01/189,170.15
  6. Step 6: Final answer
    x = 143,921.65

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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.