Home / 216,731.16-325,131.44-66,936.24

Finding the Fourth Proportional to 216,731.16, 325,131.44 and 66,936.24

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Solution

The fourth proportional to 216,731.16, 325,131.44 and 66,936.24 is: 100,415.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,731.16 : 325,131.44 = 66,936.24 : x
  2. Step 2: Convert to fraction form
    216,731.16/325,131.44 = 66,936.24/x
  3. Step 3: Cross multiply
    216,731.16x = 325,131.44 × 66,936.24
  4. Step 4: Simplify right side
    216,731.16x = 21,763,075,764.70
  5. Step 5: Solve for x
    x = 21,763,075,764.70/216,731.16
  6. Step 6: Final answer
    x = 100,415.08

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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.