Home / 121,401.35-182,120.77-41,420.57

Finding the Fourth Proportional to 121,401.35, 182,120.77 and 41,420.57

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Solution

The fourth proportional to 121,401.35, 182,120.77 and 41,420.57 is: 62,137.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,401.35 : 182,120.77 = 41,420.57 : x
  2. Step 2: Convert to fraction form
    121,401.35/182,120.77 = 41,420.57/x
  3. Step 3: Cross multiply
    121,401.35x = 182,120.77 × 41,420.57
  4. Step 4: Simplify right side
    121,401.35x = 7,543,546,102.24
  5. Step 5: Solve for x
    x = 7,543,546,102.24/121,401.35
  6. Step 6: Final answer
    x = 62,137.25

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1.5x scale

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.