Home / 202,185.11-279,014.02-111,544.90

Finding the Fourth Proportional to 202,185.11, 279,014.02 and 111,544.90

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Solution

The fourth proportional to 202,185.11, 279,014.02 and 111,544.90 is: 153,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,185.11 : 279,014.02 = 111,544.90 : x
  2. Step 2: Convert to fraction form
    202,185.11/279,014.02 = 111,544.90/x
  3. Step 3: Cross multiply
    202,185.11x = 279,014.02 × 111,544.90
  4. Step 4: Simplify right side
    202,185.11x = 31,122,589,983.10
  5. Step 5: Solve for x
    x = 31,122,589,983.10/202,185.11
  6. Step 6: Final answer
    x = 153,931.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.