Home / 139,749.42-192,837.51-82,345.26

Finding the Fourth Proportional to 139,749.42, 192,837.51 and 82,345.26

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Solution

The fourth proportional to 139,749.42, 192,837.51 and 82,345.26 is: 113,626.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,749.42 : 192,837.51 = 82,345.26 : x
  2. Step 2: Convert to fraction form
    139,749.42/192,837.51 = 82,345.26/x
  3. Step 3: Cross multiply
    139,749.42x = 192,837.51 × 82,345.26
  4. Step 4: Simplify right side
    139,749.42x = 15,879,254,898.70
  5. Step 5: Solve for x
    x = 15,879,254,898.70/139,749.42
  6. Step 6: Final answer
    x = 113,626.62

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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.