Home / 190,921.80-286,382.70-111,995.40

Finding the Fourth Proportional to 190,921.80, 286,382.70 and 111,995.40

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Solution

The fourth proportional to 190,921.80, 286,382.70 and 111,995.40 is: 167,993.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,921.80 : 286,382.70 = 111,995.40 : x
  2. Step 2: Convert to fraction form
    190,921.80/286,382.70 = 111,995.40/x
  3. Step 3: Cross multiply
    190,921.80x = 286,382.70 × 111,995.40
  4. Step 4: Simplify right side
    190,921.80x = 32,073,545,039.58
  5. Step 5: Solve for x
    x = 32,073,545,039.58/190,921.80
  6. Step 6: Final answer
    x = 167,993.10

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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.