Home / 155,409.93-233,115.03-66,605.85

Finding the Fourth Proportional to 155,409.93, 233,115.03 and 66,605.85

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Solution

The fourth proportional to 155,409.93, 233,115.03 and 66,605.85 is: 99,908.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,409.93 : 233,115.03 = 66,605.85 : x
  2. Step 2: Convert to fraction form
    155,409.93/233,115.03 = 66,605.85/x
  3. Step 3: Cross multiply
    155,409.93x = 233,115.03 × 66,605.85
  4. Step 4: Simplify right side
    155,409.93x = 15,526,824,720.93
  5. Step 5: Solve for x
    x = 15,526,824,720.93/155,409.93
  6. Step 6: Final answer
    x = 99,908.83

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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.