Home / 130,219.75-196,305.64-121,539.72

Finding the Fourth Proportional to 130,219.75, 196,305.64 and 121,539.72

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Solution

The fourth proportional to 130,219.75, 196,305.64 and 121,539.72 is: 183,220.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,219.75 : 196,305.64 = 121,539.72 : x
  2. Step 2: Convert to fraction form
    130,219.75/196,305.64 = 121,539.72/x
  3. Step 3: Cross multiply
    130,219.75x = 196,305.64 × 121,539.72
  4. Step 4: Simplify right side
    130,219.75x = 23,858,933,635.98
  5. Step 5: Solve for x
    x = 23,858,933,635.98/130,219.75
  6. Step 6: Final answer
    x = 183,220.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.