Home / 99,804.65-149,707.16-66,589.61

Finding the Fourth Proportional to 99,804.65, 149,707.16 and 66,589.61

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Solution

The fourth proportional to 99,804.65, 149,707.16 and 66,589.61 is: 99,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,804.65 : 149,707.16 = 66,589.61 : x
  2. Step 2: Convert to fraction form
    99,804.65/149,707.16 = 66,589.61/x
  3. Step 3: Cross multiply
    99,804.65x = 149,707.16 × 66,589.61
  4. Step 4: Simplify right side
    99,804.65x = 9,968,941,065.66
  5. Step 5: Solve for x
    x = 9,968,941,065.66/99,804.65
  6. Step 6: Final answer
    x = 99,884.54

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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.