Home / 121,236.40-167,286.63-67,521.25

Finding the Fourth Proportional to 121,236.40, 167,286.63 and 67,521.25

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Solution

The fourth proportional to 121,236.40, 167,286.63 and 67,521.25 is: 93,168.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,236.40 : 167,286.63 = 67,521.25 : x
  2. Step 2: Convert to fraction form
    121,236.40/167,286.63 = 67,521.25/x
  3. Step 3: Cross multiply
    121,236.40x = 167,286.63 × 67,521.25
  4. Step 4: Simplify right side
    121,236.40x = 11,295,402,365.89
  5. Step 5: Solve for x
    x = 11,295,402,365.89/121,236.40
  6. Step 6: Final answer
    x = 93,168.41

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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.