Home / 206,303.04-309,499.92-66,075.84

Finding the Fourth Proportional to 206,303.04, 309,499.92 and 66,075.84

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Solution

The fourth proportional to 206,303.04, 309,499.92 and 66,075.84 is: 99,128.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,303.04 : 309,499.92 = 66,075.84 : x
  2. Step 2: Convert to fraction form
    206,303.04/309,499.92 = 66,075.84/x
  3. Step 3: Cross multiply
    206,303.04x = 309,499.92 × 66,075.84
  4. Step 4: Simplify right side
    206,303.04x = 20,450,467,193.93
  5. Step 5: Solve for x
    x = 20,450,467,193.93/206,303.04
  6. Step 6: Final answer
    x = 99,128.29

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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.