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Finding the Fourth Proportional to 186,090.40, 279,200.40 and 80,941.60

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Solution

The fourth proportional to 186,090.40, 279,200.40 and 80,941.60 is: 121,440.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,090.40 : 279,200.40 = 80,941.60 : x
  2. Step 2: Convert to fraction form
    186,090.40/279,200.40 = 80,941.60/x
  3. Step 3: Cross multiply
    186,090.40x = 279,200.40 × 80,941.60
  4. Step 4: Simplify right side
    186,090.40x = 22,598,927,096.64
  5. Step 5: Solve for x
    x = 22,598,927,096.64/186,090.40
  6. Step 6: Final answer
    x = 121,440.59

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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.