Home / 126,102.05-174,017.55-68,742.51

Finding the Fourth Proportional to 126,102.05, 174,017.55 and 68,742.51

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Solution

The fourth proportional to 126,102.05, 174,017.55 and 68,742.51 is: 94,862.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,102.05 : 174,017.55 = 68,742.51 : x
  2. Step 2: Convert to fraction form
    126,102.05/174,017.55 = 68,742.51/x
  3. Step 3: Cross multiply
    126,102.05x = 174,017.55 × 68,742.51
  4. Step 4: Simplify right side
    126,102.05x = 11,962,403,171.05
  5. Step 5: Solve for x
    x = 11,962,403,171.05/126,102.05
  6. Step 6: Final answer
    x = 94,862.88

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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.