Home / 126,848.20-190,142.70-74,230.60

Finding the Fourth Proportional to 126,848.20, 190,142.70 and 74,230.60

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Solution

The fourth proportional to 126,848.20, 190,142.70 and 74,230.60 is: 111,270.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,848.20 : 190,142.70 = 74,230.60 : x
  2. Step 2: Convert to fraction form
    126,848.20/190,142.70 = 74,230.60/x
  3. Step 3: Cross multiply
    126,848.20x = 190,142.70 × 74,230.60
  4. Step 4: Simplify right side
    126,848.20x = 14,114,406,706.62
  5. Step 5: Solve for x
    x = 14,114,406,706.62/126,848.20
  6. Step 6: Final answer
    x = 111,270.06

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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.