Home / 130,709.08-195,977.58-86,200.12

Finding the Fourth Proportional to 130,709.08, 195,977.58 and 86,200.12

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Solution

The fourth proportional to 130,709.08, 195,977.58 and 86,200.12 is: 129,243.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,709.08 : 195,977.58 = 86,200.12 : x
  2. Step 2: Convert to fraction form
    130,709.08/195,977.58 = 86,200.12/x
  3. Step 3: Cross multiply
    130,709.08x = 195,977.58 × 86,200.12
  4. Step 4: Simplify right side
    130,709.08x = 16,893,290,913.31
  5. Step 5: Solve for x
    x = 16,893,290,913.31/130,709.08
  6. Step 6: Final answer
    x = 129,243.44

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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.