Home / 186,543.60-279,815.40-107,617.20

Finding the Fourth Proportional to 186,543.60, 279,815.40 and 107,617.20

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Solution

The fourth proportional to 186,543.60, 279,815.40 and 107,617.20 is: 161,425.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,543.60 : 279,815.40 = 107,617.20 : x
  2. Step 2: Convert to fraction form
    186,543.60/279,815.40 = 107,617.20/x
  3. Step 3: Cross multiply
    186,543.60x = 279,815.40 × 107,617.20
  4. Step 4: Simplify right side
    186,543.60x = 30,112,949,864.88
  5. Step 5: Solve for x
    x = 30,112,949,864.88/186,543.60
  6. Step 6: Final answer
    x = 161,425.80

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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.