Home / 189,436.30-261,421.55-104,552.75

Finding the Fourth Proportional to 189,436.30, 261,421.55 and 104,552.75

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Solution

The fourth proportional to 189,436.30, 261,421.55 and 104,552.75 is: 144,282.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,436.30 : 261,421.55 = 104,552.75 : x
  2. Step 2: Convert to fraction form
    189,436.30/261,421.55 = 104,552.75/x
  3. Step 3: Cross multiply
    189,436.30x = 261,421.55 × 104,552.75
  4. Step 4: Simplify right side
    189,436.30x = 27,332,341,961.76
  5. Step 5: Solve for x
    x = 27,332,341,961.76/189,436.30
  6. Step 6: Final answer
    x = 144,282.49

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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.