Home / 139,831.58-192,970.56-76,169.24

Finding the Fourth Proportional to 139,831.58, 192,970.56 and 76,169.24

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Solution

The fourth proportional to 139,831.58, 192,970.56 and 76,169.24 is: 105,115.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,831.58 : 192,970.56 = 76,169.24 : x
  2. Step 2: Convert to fraction form
    139,831.58/192,970.56 = 76,169.24/x
  3. Step 3: Cross multiply
    139,831.58x = 192,970.56 × 76,169.24
  4. Step 4: Simplify right side
    139,831.58x = 14,698,420,897.57
  5. Step 5: Solve for x
    x = 14,698,420,897.57/139,831.58
  6. Step 6: Final answer
    x = 105,115.17

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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.