Home / 190,942.20-286,340.40-57,778.20

Finding the Fourth Proportional to 190,942.20, 286,340.40 and 57,778.20

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Solution

The fourth proportional to 190,942.20, 286,340.40 and 57,778.20 is: 86,645.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,942.20 : 286,340.40 = 57,778.20 : x
  2. Step 2: Convert to fraction form
    190,942.20/286,340.40 = 57,778.20/x
  3. Step 3: Cross multiply
    190,942.20x = 286,340.40 × 57,778.20
  4. Step 4: Simplify right side
    190,942.20x = 16,544,232,899.28
  5. Step 5: Solve for x
    x = 16,544,232,899.28/190,942.20
  6. Step 6: Final answer
    x = 86,645.24

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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.