Home / 139,289.24-192,146.64-85,586.24

Finding the Fourth Proportional to 139,289.24, 192,146.64 and 85,586.24

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Solution

The fourth proportional to 139,289.24, 192,146.64 and 85,586.24 is: 118,064.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,289.24 : 192,146.64 = 85,586.24 : x
  2. Step 2: Convert to fraction form
    139,289.24/192,146.64 = 85,586.24/x
  3. Step 3: Cross multiply
    139,289.24x = 192,146.64 × 85,586.24
  4. Step 4: Simplify right side
    139,289.24x = 16,445,108,446.23
  5. Step 5: Solve for x
    x = 16,445,108,446.23/139,289.24
  6. Step 6: Final answer
    x = 118,064.46

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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.