Home / 135,075.72-202,549.97-78,932.06

Finding the Fourth Proportional to 135,075.72, 202,549.97 and 78,932.06

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Solution

The fourth proportional to 135,075.72, 202,549.97 and 78,932.06 is: 118,360.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,075.72 : 202,549.97 = 78,932.06 : x
  2. Step 2: Convert to fraction form
    135,075.72/202,549.97 = 78,932.06/x
  3. Step 3: Cross multiply
    135,075.72x = 202,549.97 × 78,932.06
  4. Step 4: Simplify right side
    135,075.72x = 15,987,684,977.63
  5. Step 5: Solve for x
    x = 15,987,684,977.63/135,075.72
  6. Step 6: Final answer
    x = 118,360.91

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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.