Home / 190,817.80-286,226.70-66,171.40

Finding the Fourth Proportional to 190,817.80, 286,226.70 and 66,171.40

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Solution

The fourth proportional to 190,817.80, 286,226.70 and 66,171.40 is: 99,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,817.80 : 286,226.70 = 66,171.40 : x
  2. Step 2: Convert to fraction form
    190,817.80/286,226.70 = 66,171.40/x
  3. Step 3: Cross multiply
    190,817.80x = 286,226.70 × 66,171.40
  4. Step 4: Simplify right side
    190,817.80x = 18,940,021,456.38
  5. Step 5: Solve for x
    x = 18,940,021,456.38/190,817.80
  6. Step 6: Final answer
    x = 99,257.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.