Home / 186,541.60-279,812.40-107,615.20

Finding the Fourth Proportional to 186,541.60, 279,812.40 and 107,615.20

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Solution

The fourth proportional to 186,541.60, 279,812.40 and 107,615.20 is: 161,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,541.60 : 279,812.40 = 107,615.20 : x
  2. Step 2: Convert to fraction form
    186,541.60/279,812.40 = 107,615.20/x
  3. Step 3: Cross multiply
    186,541.60x = 279,812.40 × 107,615.20
  4. Step 4: Simplify right side
    186,541.60x = 30,112,067,388.48
  5. Step 5: Solve for x
    x = 30,112,067,388.48/186,541.60
  6. Step 6: Final answer
    x = 161,422.80

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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.