Home / 139,629.36-192,682.80-75,967.22

Finding the Fourth Proportional to 139,629.36, 192,682.80 and 75,967.22

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Solution

The fourth proportional to 139,629.36, 192,682.80 and 75,967.22 is: 104,831.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,629.36 : 192,682.80 = 75,967.22 : x
  2. Step 2: Convert to fraction form
    139,629.36/192,682.80 = 75,967.22/x
  3. Step 3: Cross multiply
    139,629.36x = 192,682.80 × 75,967.22
  4. Step 4: Simplify right side
    139,629.36x = 14,637,576,657.82
  5. Step 5: Solve for x
    x = 14,637,576,657.82/139,629.36
  6. Step 6: Final answer
    x = 104,831.65

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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.