Home / 200,986.10-301,133.55-130,829.30

Finding the Fourth Proportional to 200,986.10, 301,133.55 and 130,829.30

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Solution

The fourth proportional to 200,986.10, 301,133.55 and 130,829.30 is: 196,018.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,986.10 : 301,133.55 = 130,829.30 : x
  2. Step 2: Convert to fraction form
    200,986.10/301,133.55 = 130,829.30/x
  3. Step 3: Cross multiply
    200,986.10x = 301,133.55 × 130,829.30
  4. Step 4: Simplify right side
    200,986.10x = 39,397,091,553.02
  5. Step 5: Solve for x
    x = 39,397,091,553.02/200,986.10
  6. Step 6: Final answer
    x = 196,018.99

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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.