Home / 139,734.35-192,836.85-76,075.64

Finding the Fourth Proportional to 139,734.35, 192,836.85 and 76,075.64

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Solution

The fourth proportional to 139,734.35, 192,836.85 and 76,075.64 is: 104,986.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,734.35 : 192,836.85 = 76,075.64 : x
  2. Step 2: Convert to fraction form
    139,734.35/192,836.85 = 76,075.64/x
  3. Step 3: Cross multiply
    139,734.35x = 192,836.85 × 76,075.64
  4. Step 4: Simplify right side
    139,734.35x = 14,670,186,680.93
  5. Step 5: Solve for x
    x = 14,670,186,680.93/139,734.35
  6. Step 6: Final answer
    x = 104,986.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.