Home / 108,242.71-162,303.31-74,548.33

Finding the Fourth Proportional to 108,242.71, 162,303.31 and 74,548.33

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Solution

The fourth proportional to 108,242.71, 162,303.31 and 74,548.33 is: 111,780.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,242.71 : 162,303.31 = 74,548.33 : x
  2. Step 2: Convert to fraction form
    108,242.71/162,303.31 = 74,548.33/x
  3. Step 3: Cross multiply
    108,242.71x = 162,303.31 × 74,548.33
  4. Step 4: Simplify right side
    108,242.71x = 12,099,440,713.97
  5. Step 5: Solve for x
    x = 12,099,440,713.97/108,242.71
  6. Step 6: Final answer
    x = 111,780.65

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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.