Home / 142,831.35-197,100.36-82,421.37

Finding the Fourth Proportional to 142,831.35, 197,100.36 and 82,421.37

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Solution

The fourth proportional to 142,831.35, 197,100.36 and 82,421.37 is: 113,737.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,831.35 : 197,100.36 = 82,421.37 : x
  2. Step 2: Convert to fraction form
    142,831.35/197,100.36 = 82,421.37/x
  3. Step 3: Cross multiply
    142,831.35x = 197,100.36 × 82,421.37
  4. Step 4: Simplify right side
    142,831.35x = 16,245,281,698.69
  5. Step 5: Solve for x
    x = 16,245,281,698.69/142,831.35
  6. Step 6: Final answer
    x = 113,737.51

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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.