Home / 121,741.84-182,361.18-71,667.64

Finding the Fourth Proportional to 121,741.84, 182,361.18 and 71,667.64

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Solution

The fourth proportional to 121,741.84, 182,361.18 and 71,667.64 is: 107,353.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,741.84 : 182,361.18 = 71,667.64 : x
  2. Step 2: Convert to fraction form
    121,741.84/182,361.18 = 71,667.64/x
  3. Step 3: Cross multiply
    121,741.84x = 182,361.18 × 71,667.64
  4. Step 4: Simplify right side
    121,741.84x = 13,069,395,398.22
  5. Step 5: Solve for x
    x = 13,069,395,398.22/121,741.84
  6. Step 6: Final answer
    x = 107,353.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.