Home / 121,361.28-167,430.40-73,597.20

Finding the Fourth Proportional to 121,361.28, 167,430.40 and 73,597.20

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Solution

The fourth proportional to 121,361.28, 167,430.40 and 73,597.20 is: 101,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,361.28 : 167,430.40 = 73,597.20 : x
  2. Step 2: Convert to fraction form
    121,361.28/167,430.40 = 73,597.20/x
  3. Step 3: Cross multiply
    121,361.28x = 167,430.40 × 73,597.20
  4. Step 4: Simplify right side
    121,361.28x = 12,322,408,634.88
  5. Step 5: Solve for x
    x = 12,322,408,634.88/121,361.28
  6. Step 6: Final answer
    x = 101,534.93

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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.