Home / 121,121.87-181,692.05-36,889.16

Finding the Fourth Proportional to 121,121.87, 181,692.05 and 36,889.16

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Solution

The fourth proportional to 121,121.87, 181,692.05 and 36,889.16 is: 55,336.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,121.87 : 181,692.05 = 36,889.16 : x
  2. Step 2: Convert to fraction form
    121,121.87/181,692.05 = 36,889.16/x
  3. Step 3: Cross multiply
    121,121.87x = 181,692.05 × 36,889.16
  4. Step 4: Simplify right side
    121,121.87x = 6,702,466,010.27
  5. Step 5: Solve for x
    x = 6,702,466,010.27/121,121.87
  6. Step 6: Final answer
    x = 55,336.55

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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.