Home / 189,813.12-261,928.94-104,923.50

Finding the Fourth Proportional to 189,813.12, 261,928.94 and 104,923.50

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Solution

The fourth proportional to 189,813.12, 261,928.94 and 104,923.50 is: 144,787.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,813.12 : 261,928.94 = 104,923.50 : x
  2. Step 2: Convert to fraction form
    189,813.12/261,928.94 = 104,923.50/x
  3. Step 3: Cross multiply
    189,813.12x = 261,928.94 × 104,923.50
  4. Step 4: Simplify right side
    189,813.12x = 27,482,500,611.47
  5. Step 5: Solve for x
    x = 27,482,500,611.47/189,813.12
  6. Step 6: Final answer
    x = 144,787.15

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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.