Home / 134,736.20-201,758.70-128,515.40

Finding the Fourth Proportional to 134,736.20, 201,758.70 and 128,515.40

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Solution

The fourth proportional to 134,736.20, 201,758.70 and 128,515.40 is: 192,443.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,736.20 : 201,758.70 = 128,515.40 : x
  2. Step 2: Convert to fraction form
    134,736.20/201,758.70 = 128,515.40/x
  3. Step 3: Cross multiply
    134,736.20x = 201,758.70 × 128,515.40
  4. Step 4: Simplify right side
    134,736.20x = 25,929,100,033.98
  5. Step 5: Solve for x
    x = 25,929,100,033.98/134,736.20
  6. Step 6: Final answer
    x = 192,443.46

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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.