Home / 126,892.28-175,032.12-81,629.26

Finding the Fourth Proportional to 126,892.28, 175,032.12 and 81,629.26

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Solution

The fourth proportional to 126,892.28, 175,032.12 and 81,629.26 is: 112,597.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,892.28 : 175,032.12 = 81,629.26 : x
  2. Step 2: Convert to fraction form
    126,892.28/175,032.12 = 81,629.26/x
  3. Step 3: Cross multiply
    126,892.28x = 175,032.12 × 81,629.26
  4. Step 4: Simplify right side
    126,892.28x = 14,287,742,431.83
  5. Step 5: Solve for x
    x = 14,287,742,431.83/126,892.28
  6. Step 6: Final answer
    x = 112,597.41

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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.