Home / 121,729.56-167,976.36-70,048.32

Finding the Fourth Proportional to 121,729.56, 167,976.36 and 70,048.32

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Solution

The fourth proportional to 121,729.56, 167,976.36 and 70,048.32 is: 96,660.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,729.56 : 167,976.36 = 70,048.32 : x
  2. Step 2: Convert to fraction form
    121,729.56/167,976.36 = 70,048.32/x
  3. Step 3: Cross multiply
    121,729.56x = 167,976.36 × 70,048.32
  4. Step 4: Simplify right side
    121,729.56x = 11,766,461,817.72
  5. Step 5: Solve for x
    x = 11,766,461,817.72/121,729.56
  6. Step 6: Final answer
    x = 96,660.68

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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.