Home / 121,074.28-167,081.60-66,629.59

Finding the Fourth Proportional to 121,074.28, 167,081.60 and 66,629.59

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Solution

The fourth proportional to 121,074.28, 167,081.60 and 66,629.59 is: 91,948.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,074.28 : 167,081.60 = 66,629.59 : x
  2. Step 2: Convert to fraction form
    121,074.28/167,081.60 = 66,629.59/x
  3. Step 3: Cross multiply
    121,074.28x = 167,081.60 × 66,629.59
  4. Step 4: Simplify right side
    121,074.28x = 11,132,578,253.41
  5. Step 5: Solve for x
    x = 11,132,578,253.41/121,074.28
  6. Step 6: Final answer
    x = 91,948.34

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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.