Home / 161,942.58-223,311.20-139,358.16

Finding the Fourth Proportional to 161,942.58, 223,311.20 and 139,358.16

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Solution

The fourth proportional to 161,942.58, 223,311.20 and 139,358.16 is: 192,168.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,942.58 : 223,311.20 = 139,358.16 : x
  2. Step 2: Convert to fraction form
    161,942.58/223,311.20 = 139,358.16/x
  3. Step 3: Cross multiply
    161,942.58x = 223,311.20 × 139,358.16
  4. Step 4: Simplify right side
    161,942.58x = 31,120,237,242.60
  5. Step 5: Solve for x
    x = 31,120,237,242.60/161,942.58
  6. Step 6: Final answer
    x = 192,168.34

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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.