Home / 108,117.10-161,786.85-73,125.10

Finding the Fourth Proportional to 108,117.10, 161,786.85 and 73,125.10

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Solution

The fourth proportional to 108,117.10, 161,786.85 and 73,125.10 is: 109,424.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,117.10 : 161,786.85 = 73,125.10 : x
  2. Step 2: Convert to fraction form
    108,117.10/161,786.85 = 73,125.10/x
  3. Step 3: Cross multiply
    108,117.10x = 161,786.85 × 73,125.10
  4. Step 4: Simplify right side
    108,117.10x = 11,830,679,584.94
  5. Step 5: Solve for x
    x = 11,830,679,584.94/108,117.10
  6. Step 6: Final answer
    x = 109,424.68

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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.