Home / 142,674.22-196,442.28-121,119.28

Finding the Fourth Proportional to 142,674.22, 196,442.28 and 121,119.28

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Solution

The fourth proportional to 142,674.22, 196,442.28 and 121,119.28 is: 166,764.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,674.22 : 196,442.28 = 121,119.28 : x
  2. Step 2: Convert to fraction form
    142,674.22/196,442.28 = 121,119.28/x
  3. Step 3: Cross multiply
    142,674.22x = 196,442.28 × 121,119.28
  4. Step 4: Simplify right side
    142,674.22x = 23,792,947,515.16
  5. Step 5: Solve for x
    x = 23,792,947,515.16/142,674.22
  6. Step 6: Final answer
    x = 166,764.17

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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.