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Finding the Fourth Proportional to 170,754.40, 256,131.60 and 82,050.40

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Solution

The fourth proportional to 170,754.40, 256,131.60 and 82,050.40 is: 123,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,754.40 : 256,131.60 = 82,050.40 : x
  2. Step 2: Convert to fraction form
    170,754.40/256,131.60 = 82,050.40/x
  3. Step 3: Cross multiply
    170,754.40x = 256,131.60 × 82,050.40
  4. Step 4: Simplify right side
    170,754.40x = 21,015,700,232.64
  5. Step 5: Solve for x
    x = 21,015,700,232.64/170,754.40
  6. Step 6: Final answer
    x = 123,075.60

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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.