Home / 131,036.80-196,555.20-83,797.60

Finding the Fourth Proportional to 131,036.80, 196,555.20 and 83,797.60

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Solution

The fourth proportional to 131,036.80, 196,555.20 and 83,797.60 is: 125,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,036.80 : 196,555.20 = 83,797.60 : x
  2. Step 2: Convert to fraction form
    131,036.80/196,555.20 = 83,797.60/x
  3. Step 3: Cross multiply
    131,036.80x = 196,555.20 × 83,797.60
  4. Step 4: Simplify right side
    131,036.80x = 16,470,854,027.52
  5. Step 5: Solve for x
    x = 16,470,854,027.52/131,036.80
  6. Step 6: Final answer
    x = 125,696.40

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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.