Home / 126,469.40-190,032.15-112,035.20

Finding the Fourth Proportional to 126,469.40, 190,032.15 and 112,035.20

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Solution

The fourth proportional to 126,469.40, 190,032.15 and 112,035.20 is: 168,343.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,469.40 : 190,032.15 = 112,035.20 : x
  2. Step 2: Convert to fraction form
    126,469.40/190,032.15 = 112,035.20/x
  3. Step 3: Cross multiply
    126,469.40x = 190,032.15 × 112,035.20
  4. Step 4: Simplify right side
    126,469.40x = 21,290,289,931.68
  5. Step 5: Solve for x
    x = 21,290,289,931.68/126,469.40
  6. Step 6: Final answer
    x = 168,343.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.