Home / 190,990.38-286,486.38-64,631.64

Finding the Fourth Proportional to 190,990.38, 286,486.38 and 64,631.64

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Solution

The fourth proportional to 190,990.38, 286,486.38 and 64,631.64 is: 96,947.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,990.38 : 286,486.38 = 64,631.64 : x
  2. Step 2: Convert to fraction form
    190,990.38/286,486.38 = 64,631.64/x
  3. Step 3: Cross multiply
    190,990.38x = 286,486.38 × 64,631.64
  4. Step 4: Simplify right side
    190,990.38x = 18,516,084,577.06
  5. Step 5: Solve for x
    x = 18,516,084,577.06/190,990.38
  6. Step 6: Final answer
    x = 96,947.73

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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.