Home / 129,166.32-193,751.40-85,075.44

Finding the Fourth Proportional to 129,166.32, 193,751.40 and 85,075.44

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Solution

The fourth proportional to 129,166.32, 193,751.40 and 85,075.44 is: 127,614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,166.32 : 193,751.40 = 85,075.44 : x
  2. Step 2: Convert to fraction form
    129,166.32/193,751.40 = 85,075.44/x
  3. Step 3: Cross multiply
    129,166.32x = 193,751.40 × 85,075.44
  4. Step 4: Simplify right side
    129,166.32x = 16,483,485,605.62
  5. Step 5: Solve for x
    x = 16,483,485,605.62/129,166.32
  6. Step 6: Final answer
    x = 127,614.42

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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.