Home / 106,741.09-147,301.36-58,342.78

Finding the Fourth Proportional to 106,741.09, 147,301.36 and 58,342.78

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Solution

The fourth proportional to 106,741.09, 147,301.36 and 58,342.78 is: 80,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,741.09 : 147,301.36 = 58,342.78 : x
  2. Step 2: Convert to fraction form
    106,741.09/147,301.36 = 58,342.78/x
  3. Step 3: Cross multiply
    106,741.09x = 147,301.36 × 58,342.78
  4. Step 4: Simplify right side
    106,741.09x = 8,593,970,840.18
  5. Step 5: Solve for x
    x = 8,593,970,840.18/106,741.09
  6. Step 6: Final answer
    x = 80,512.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.