Home / 128,075.12-192,115.44-33,308.96

Finding the Fourth Proportional to 128,075.12, 192,115.44 and 33,308.96

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Solution

The fourth proportional to 128,075.12, 192,115.44 and 33,308.96 is: 49,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,075.12 : 192,115.44 = 33,308.96 : x
  2. Step 2: Convert to fraction form
    128,075.12/192,115.44 = 33,308.96/x
  3. Step 3: Cross multiply
    128,075.12x = 192,115.44 × 33,308.96
  4. Step 4: Simplify right side
    128,075.12x = 6,399,165,506.34
  5. Step 5: Solve for x
    x = 6,399,165,506.34/128,075.12
  6. Step 6: Final answer
    x = 49,964.16

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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.