Home / 201,415.30-302,131.15-83,075.36

Finding the Fourth Proportional to 201,415.30, 302,131.15 and 83,075.36

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Solution

The fourth proportional to 201,415.30, 302,131.15 and 83,075.36 is: 124,616.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,415.30 : 302,131.15 = 83,075.36 : x
  2. Step 2: Convert to fraction form
    201,415.30/302,131.15 = 83,075.36/x
  3. Step 3: Cross multiply
    201,415.30x = 302,131.15 × 83,075.36
  4. Step 4: Simplify right side
    201,415.30x = 25,099,654,053.46
  5. Step 5: Solve for x
    x = 25,099,654,053.46/201,415.30
  6. Step 6: Final answer
    x = 124,616.42

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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.