Home / 189,485.11-261,498.54-104,607.64

Finding the Fourth Proportional to 189,485.11, 261,498.54 and 104,607.64

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Solution

The fourth proportional to 189,485.11, 261,498.54 and 104,607.64 is: 144,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,485.11 : 261,498.54 = 104,607.64 : x
  2. Step 2: Convert to fraction form
    189,485.11/261,498.54 = 104,607.64/x
  3. Step 3: Cross multiply
    189,485.11x = 261,498.54 × 104,607.64
  4. Step 4: Simplify right side
    189,485.11x = 27,354,745,132.85
  5. Step 5: Solve for x
    x = 27,354,745,132.85/189,485.11
  6. Step 6: Final answer
    x = 144,363.56

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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.