Home / 121,620.44-182,513.70-42,734.67

Finding the Fourth Proportional to 121,620.44, 182,513.70 and 42,734.67

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Solution

The fourth proportional to 121,620.44, 182,513.70 and 42,734.67 is: 64,131.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,620.44 : 182,513.70 = 42,734.67 : x
  2. Step 2: Convert to fraction form
    121,620.44/182,513.70 = 42,734.67/x
  3. Step 3: Cross multiply
    121,620.44x = 182,513.70 × 42,734.67
  4. Step 4: Simplify right side
    121,620.44x = 7,799,662,739.98
  5. Step 5: Solve for x
    x = 7,799,662,739.98/121,620.44
  6. Step 6: Final answer
    x = 64,131.19

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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.