Home / 139,831.42-192,966.37-76,169.22

Finding the Fourth Proportional to 139,831.42, 192,966.37 and 76,169.22

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Solution

The fourth proportional to 139,831.42, 192,966.37 and 76,169.22 is: 105,112.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,831.42 : 192,966.37 = 76,169.22 : x
  2. Step 2: Convert to fraction form
    139,831.42/192,966.37 = 76,169.22/x
  3. Step 3: Cross multiply
    139,831.42x = 192,966.37 × 76,169.22
  4. Step 4: Simplify right side
    139,831.42x = 14,698,097,889.13
  5. Step 5: Solve for x
    x = 14,698,097,889.13/139,831.42
  6. Step 6: Final answer
    x = 105,112.98

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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.