Home / 136,075.08-187,787.46-82,369.80

Finding the Fourth Proportional to 136,075.08, 187,787.46 and 82,369.80

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Solution

The fourth proportional to 136,075.08, 187,787.46 and 82,369.80 is: 113,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,075.08 : 187,787.46 = 82,369.80 : x
  2. Step 2: Convert to fraction form
    136,075.08/187,787.46 = 82,369.80/x
  3. Step 3: Cross multiply
    136,075.08x = 187,787.46 × 82,369.80
  4. Step 4: Simplify right side
    136,075.08x = 15,468,015,522.71
  5. Step 5: Solve for x
    x = 15,468,015,522.71/136,075.08
  6. Step 6: Final answer
    x = 113,672.65

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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.