Home / 143,606.60-198,147.09-83,173.64

Finding the Fourth Proportional to 143,606.60, 198,147.09 and 83,173.64

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Solution

The fourth proportional to 143,606.60, 198,147.09 and 83,173.64 is: 114,762.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,606.60 : 198,147.09 = 83,173.64 : x
  2. Step 2: Convert to fraction form
    143,606.60/198,147.09 = 83,173.64/x
  3. Step 3: Cross multiply
    143,606.60x = 198,147.09 × 83,173.64
  4. Step 4: Simplify right side
    143,606.60x = 16,480,614,051.87
  5. Step 5: Solve for x
    x = 16,480,614,051.87/143,606.60
  6. Step 6: Final answer
    x = 114,762.23

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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.