Home / 191,321.09-286,991.36-64,976.21

Finding the Fourth Proportional to 191,321.09, 286,991.36 and 64,976.21

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Solution

The fourth proportional to 191,321.09, 286,991.36 and 64,976.21 is: 97,467.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,321.09 : 286,991.36 = 64,976.21 : x
  2. Step 2: Convert to fraction form
    191,321.09/286,991.36 = 64,976.21/x
  3. Step 3: Cross multiply
    191,321.09x = 286,991.36 × 64,976.21
  4. Step 4: Simplify right side
    191,321.09x = 18,647,610,550.66
  5. Step 5: Solve for x
    x = 18,647,610,550.66/191,321.09
  6. Step 6: Final answer
    x = 97,467.62

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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.