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Finding the Fourth Proportional to 126,480.48, 174,579.48 and 83,491.38

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Solution

The fourth proportional to 126,480.48, 174,579.48 and 83,491.38 is: 115,242.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,480.48 : 174,579.48 = 83,491.38 : x
  2. Step 2: Convert to fraction form
    126,480.48/174,579.48 = 83,491.38/x
  3. Step 3: Cross multiply
    126,480.48x = 174,579.48 × 83,491.38
  4. Step 4: Simplify right side
    126,480.48x = 14,575,881,704.88
  5. Step 5: Solve for x
    x = 14,575,881,704.88/126,480.48
  6. Step 6: Final answer
    x = 115,242.14

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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.