Home / 121,331.03-167,429.46-66,880.81

Finding the Fourth Proportional to 121,331.03, 167,429.46 and 66,880.81

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Solution

The fourth proportional to 121,331.03, 167,429.46 and 66,880.81 is: 92,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,331.03 : 167,429.46 = 66,880.81 : x
  2. Step 2: Convert to fraction form
    121,331.03/167,429.46 = 66,880.81/x
  3. Step 3: Cross multiply
    121,331.03x = 167,429.46 × 66,880.81
  4. Step 4: Simplify right side
    121,331.03x = 11,197,817,902.66
  5. Step 5: Solve for x
    x = 11,197,817,902.66/121,331.03
  6. Step 6: Final answer
    x = 92,291.46

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1.5x scale

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.