Home / 121,408.40-182,112.60-47,536.40

Finding the Fourth Proportional to 121,408.40, 182,112.60 and 47,536.40

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Solution

The fourth proportional to 121,408.40, 182,112.60 and 47,536.40 is: 71,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,408.40 : 182,112.60 = 47,536.40 : x
  2. Step 2: Convert to fraction form
    121,408.40/182,112.60 = 47,536.40/x
  3. Step 3: Cross multiply
    121,408.40x = 182,112.60 × 47,536.40
  4. Step 4: Simplify right side
    121,408.40x = 8,656,977,398.64
  5. Step 5: Solve for x
    x = 8,656,977,398.64/121,408.40
  6. Step 6: Final answer
    x = 71,304.60

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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.