Home / 96,986.72-133,847.20-64,665.60

Finding the Fourth Proportional to 96,986.72, 133,847.20 and 64,665.60

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Solution

The fourth proportional to 96,986.72, 133,847.20 and 64,665.60 is: 89,242.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,986.72 : 133,847.20 = 64,665.60 : x
  2. Step 2: Convert to fraction form
    96,986.72/133,847.20 = 64,665.60/x
  3. Step 3: Cross multiply
    96,986.72x = 133,847.20 × 64,665.60
  4. Step 4: Simplify right side
    96,986.72x = 8,655,309,496.32
  5. Step 5: Solve for x
    x = 8,655,309,496.32/96,986.72
  6. Step 6: Final answer
    x = 89,242.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.