Home / 186,427.76-279,120.60-100,731.64

Finding the Fourth Proportional to 186,427.76, 279,120.60 and 100,731.64

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Solution

The fourth proportional to 186,427.76, 279,120.60 and 100,731.64 is: 150,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,427.76 : 279,120.60 = 100,731.64 : x
  2. Step 2: Convert to fraction form
    186,427.76/279,120.60 = 100,731.64/x
  3. Step 3: Cross multiply
    186,427.76x = 279,120.60 × 100,731.64
  4. Step 4: Simplify right side
    186,427.76x = 28,116,275,795.78
  5. Step 5: Solve for x
    x = 28,116,275,795.78/186,427.76
  6. Step 6: Final answer
    x = 150,815.93

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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.