Home / 142,022.85-212,831.31-104,286.84

Finding the Fourth Proportional to 142,022.85, 212,831.31 and 104,286.84

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Solution

The fourth proportional to 142,022.85, 212,831.31 and 104,286.84 is: 156,281.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,022.85 : 212,831.31 = 104,286.84 : x
  2. Step 2: Convert to fraction form
    142,022.85/212,831.31 = 104,286.84/x
  3. Step 3: Cross multiply
    142,022.85x = 212,831.31 × 104,286.84
  4. Step 4: Simplify right side
    142,022.85x = 22,195,504,772.96
  5. Step 5: Solve for x
    x = 22,195,504,772.96/142,022.85
  6. Step 6: Final answer
    x = 156,281.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.