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Finding the Fourth Proportional to 141,907.66, 212,436.47 and 136,860.78

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Solution

The fourth proportional to 141,907.66, 212,436.47 and 136,860.78 is: 204,881.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,907.66 : 212,436.47 = 136,860.78 : x
  2. Step 2: Convert to fraction form
    141,907.66/212,436.47 = 136,860.78/x
  3. Step 3: Cross multiply
    141,907.66x = 212,436.47 × 136,860.78
  4. Step 4: Simplify right side
    141,907.66x = 29,074,220,984.65
  5. Step 5: Solve for x
    x = 29,074,220,984.65/141,907.66
  6. Step 6: Final answer
    x = 204,881.27

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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.