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Finding the Fourth Proportional to 126,874, 190,303.68 and 38,125.60

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Solution

The fourth proportional to 126,874, 190,303.68 and 38,125.60 is: 57,186.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,874 : 190,303.68 = 38,125.60 : x
  2. Step 2: Convert to fraction form
    126,874/190,303.68 = 38,125.60/x
  3. Step 3: Cross multiply
    126,874x = 190,303.68 × 38,125.60
  4. Step 4: Simplify right side
    126,874x = 7,255,441,982.21
  5. Step 5: Solve for x
    x = 7,255,441,982.21/126,874
  6. Step 6: Final answer
    x = 57,186.20

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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.