Home / 190,977.12-286,072.02-111,851.46

Finding the Fourth Proportional to 190,977.12, 286,072.02 and 111,851.46

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Solution

The fourth proportional to 190,977.12, 286,072.02 and 111,851.46 is: 167,546.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,977.12 : 286,072.02 = 111,851.46 : x
  2. Step 2: Convert to fraction form
    190,977.12/286,072.02 = 111,851.46/x
  3. Step 3: Cross multiply
    190,977.12x = 286,072.02 × 111,851.46
  4. Step 4: Simplify right side
    190,977.12x = 31,997,573,102.15
  5. Step 5: Solve for x
    x = 31,997,573,102.15/190,977.12
  6. Step 6: Final answer
    x = 167,546.63

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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.