Home / 121,258.11-167,336.37-70,280.76

Finding the Fourth Proportional to 121,258.11, 167,336.37 and 70,280.76

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Solution

The fourth proportional to 121,258.11, 167,336.37 and 70,280.76 is: 96,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,258.11 : 167,336.37 = 70,280.76 : x
  2. Step 2: Convert to fraction form
    121,258.11/167,336.37 = 70,280.76/x
  3. Step 3: Cross multiply
    121,258.11x = 167,336.37 × 70,280.76
  4. Step 4: Simplify right side
    121,258.11x = 11,760,527,259.24
  5. Step 5: Solve for x
    x = 11,760,527,259.24/121,258.11
  6. Step 6: Final answer
    x = 96,987.55

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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.