Home / 186,007.70-279,076.35-80,902.10

Finding the Fourth Proportional to 186,007.70, 279,076.35 and 80,902.10

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Solution

The fourth proportional to 186,007.70, 279,076.35 and 80,902.10 is: 121,381.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,007.70 : 279,076.35 = 80,902.10 : x
  2. Step 2: Convert to fraction form
    186,007.70/279,076.35 = 80,902.10/x
  3. Step 3: Cross multiply
    186,007.70x = 279,076.35 × 80,902.10
  4. Step 4: Simplify right side
    186,007.70x = 22,577,862,775.34
  5. Step 5: Solve for x
    x = 22,577,862,775.34/186,007.70
  6. Step 6: Final answer
    x = 121,381.33

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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.