Home / 189,156.09-261,040.88-104,278.62

Finding the Fourth Proportional to 189,156.09, 261,040.88 and 104,278.62

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Solution

The fourth proportional to 189,156.09, 261,040.88 and 104,278.62 is: 143,907.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,156.09 : 261,040.88 = 104,278.62 : x
  2. Step 2: Convert to fraction form
    189,156.09/261,040.88 = 104,278.62/x
  3. Step 3: Cross multiply
    189,156.09x = 261,040.88 × 104,278.62
  4. Step 4: Simplify right side
    189,156.09x = 27,220,983,383.02
  5. Step 5: Solve for x
    x = 27,220,983,383.02/189,156.09
  6. Step 6: Final answer
    x = 143,907.51

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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.