Home / 139,736.48-192,840.38-76,075.36

Finding the Fourth Proportional to 139,736.48, 192,840.38 and 76,075.36

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Solution

The fourth proportional to 139,736.48, 192,840.38 and 76,075.36 is: 104,986.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,736.48 : 192,840.38 = 76,075.36 : x
  2. Step 2: Convert to fraction form
    139,736.48/192,840.38 = 76,075.36/x
  3. Step 3: Cross multiply
    139,736.48x = 192,840.38 × 76,075.36
  4. Step 4: Simplify right side
    139,736.48x = 14,670,401,331.04
  5. Step 5: Solve for x
    x = 14,670,401,331.04/139,736.48
  6. Step 6: Final answer
    x = 104,986.19

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1.5x scale

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.