Home / 142,673.22-196,440.90-121,118.28

Finding the Fourth Proportional to 142,673.22, 196,440.90 and 121,118.28

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Solution

The fourth proportional to 142,673.22, 196,440.90 and 121,118.28 is: 166,762.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,673.22 : 196,440.90 = 121,118.28 : x
  2. Step 2: Convert to fraction form
    142,673.22/196,440.90 = 121,118.28/x
  3. Step 3: Cross multiply
    142,673.22x = 196,440.90 × 121,118.28
  4. Step 4: Simplify right side
    142,673.22x = 23,792,583,929.65
  5. Step 5: Solve for x
    x = 23,792,583,929.65/142,673.22
  6. Step 6: Final answer
    x = 166,762.79

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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.