Home / 121,698.36-167,931.66-67,982.22

Finding the Fourth Proportional to 121,698.36, 167,931.66 and 67,982.22

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Solution

The fourth proportional to 121,698.36, 167,931.66 and 67,982.22 is: 93,808.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,698.36 : 167,931.66 = 67,982.22 : x
  2. Step 2: Convert to fraction form
    121,698.36/167,931.66 = 67,982.22/x
  3. Step 3: Cross multiply
    121,698.36x = 167,931.66 × 67,982.22
  4. Step 4: Simplify right side
    121,698.36x = 11,416,367,055.09
  5. Step 5: Solve for x
    x = 11,416,367,055.09/121,698.36
  6. Step 6: Final answer
    x = 93,808.72

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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.