Home / 126,374.99-174,448.38-86,129.43

Finding the Fourth Proportional to 126,374.99, 174,448.38 and 86,129.43

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Solution

The fourth proportional to 126,374.99, 174,448.38 and 86,129.43 is: 118,893.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,374.99 : 174,448.38 = 86,129.43 : x
  2. Step 2: Convert to fraction form
    126,374.99/174,448.38 = 86,129.43/x
  3. Step 3: Cross multiply
    126,374.99x = 174,448.38 × 86,129.43
  4. Step 4: Simplify right side
    126,374.99x = 15,025,139,202.63
  5. Step 5: Solve for x
    x = 15,025,139,202.63/126,374.99
  6. Step 6: Final answer
    x = 118,893.30

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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.