Home / 108,740.72-162,988.14-58,709.36

Finding the Fourth Proportional to 108,740.72, 162,988.14 and 58,709.36

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Solution

The fourth proportional to 108,740.72, 162,988.14 and 58,709.36 is: 87,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,740.72 : 162,988.14 = 58,709.36 : x
  2. Step 2: Convert to fraction form
    108,740.72/162,988.14 = 58,709.36/x
  3. Step 3: Cross multiply
    108,740.72x = 162,988.14 × 58,709.36
  4. Step 4: Simplify right side
    108,740.72x = 9,568,929,386.99
  5. Step 5: Solve for x
    x = 9,568,929,386.99/108,740.72
  6. Step 6: Final answer
    x = 87,997.66

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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.