Home / 138,147.72-190,541.63-95,140.97

Finding the Fourth Proportional to 138,147.72, 190,541.63 and 95,140.97

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Solution

The fourth proportional to 138,147.72, 190,541.63 and 95,140.97 is: 131,224.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,147.72 : 190,541.63 = 95,140.97 : x
  2. Step 2: Convert to fraction form
    138,147.72/190,541.63 = 95,140.97/x
  3. Step 3: Cross multiply
    138,147.72x = 190,541.63 × 95,140.97
  4. Step 4: Simplify right side
    138,147.72x = 18,128,315,503.58
  5. Step 5: Solve for x
    x = 18,128,315,503.58/138,147.72
  6. Step 6: Final answer
    x = 131,224.14

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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.