Home / 200,130.09-300,298.61-87,889.20

Finding the Fourth Proportional to 200,130.09, 300,298.61 and 87,889.20

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Solution

The fourth proportional to 200,130.09, 300,298.61 and 87,889.20 is: 131,879.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,130.09 : 300,298.61 = 87,889.20 : x
  2. Step 2: Convert to fraction form
    200,130.09/300,298.61 = 87,889.20/x
  3. Step 3: Cross multiply
    200,130.09x = 300,298.61 × 87,889.20
  4. Step 4: Simplify right side
    200,130.09x = 26,393,004,594.01
  5. Step 5: Solve for x
    x = 26,393,004,594.01/200,130.09
  6. Step 6: Final answer
    x = 131,879.24

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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.