Home / 104,712.31-156,975.45-38,140.03

Finding the Fourth Proportional to 104,712.31, 156,975.45 and 38,140.03

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Solution

The fourth proportional to 104,712.31, 156,975.45 and 38,140.03 is: 57,176.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,712.31 : 156,975.45 = 38,140.03 : x
  2. Step 2: Convert to fraction form
    104,712.31/156,975.45 = 38,140.03/x
  3. Step 3: Cross multiply
    104,712.31x = 156,975.45 × 38,140.03
  4. Step 4: Simplify right side
    104,712.31x = 5,987,048,372.26
  5. Step 5: Solve for x
    x = 5,987,048,372.26/104,712.31
  6. Step 6: Final answer
    x = 57,176.17

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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.