Home / 190,047.20-285,003.60-65,359.20

Finding the Fourth Proportional to 190,047.20, 285,003.60 and 65,359.20

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Solution

The fourth proportional to 190,047.20, 285,003.60 and 65,359.20 is: 98,015.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,047.20 : 285,003.60 = 65,359.20 : x
  2. Step 2: Convert to fraction form
    190,047.20/285,003.60 = 65,359.20/x
  3. Step 3: Cross multiply
    190,047.20x = 285,003.60 × 65,359.20
  4. Step 4: Simplify right side
    190,047.20x = 18,627,607,293.12
  5. Step 5: Solve for x
    x = 18,627,607,293.12/190,047.20
  6. Step 6: Final answer
    x = 98,015.69

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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.