Home / 189,028.57-260,859.27-104,145.63

Finding the Fourth Proportional to 189,028.57, 260,859.27 and 104,145.63

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Solution

The fourth proportional to 189,028.57, 260,859.27 and 104,145.63 is: 143,720.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,028.57 : 260,859.27 = 104,145.63 : x
  2. Step 2: Convert to fraction form
    189,028.57/260,859.27 = 104,145.63/x
  3. Step 3: Cross multiply
    189,028.57x = 260,859.27 × 104,145.63
  4. Step 4: Simplify right side
    189,028.57x = 27,167,353,015.49
  5. Step 5: Solve for x
    x = 27,167,353,015.49/189,028.57
  6. Step 6: Final answer
    x = 143,720.89

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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.