Home / 149,534.45-206,369.81-85,023.92

Finding the Fourth Proportional to 149,534.45, 206,369.81 and 85,023.92

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Solution

The fourth proportional to 149,534.45, 206,369.81 and 85,023.92 is: 117,339.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,534.45 : 206,369.81 = 85,023.92 : x
  2. Step 2: Convert to fraction form
    149,534.45/206,369.81 = 85,023.92/x
  3. Step 3: Cross multiply
    149,534.45x = 206,369.81 × 85,023.92
  4. Step 4: Simplify right side
    149,534.45x = 17,546,368,758.89
  5. Step 5: Solve for x
    x = 17,546,368,758.89/149,534.45
  6. Step 6: Final answer
    x = 117,339.98

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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.