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Finding the Fourth Proportional to 186,803.64, 279,913.86 and 107,955

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Solution

The fourth proportional to 186,803.64, 279,913.86 and 107,955 is: 161,763.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,803.64 : 279,913.86 = 107,955 : x
  2. Step 2: Convert to fraction form
    186,803.64/279,913.86 = 107,955/x
  3. Step 3: Cross multiply
    186,803.64x = 279,913.86 × 107,955
  4. Step 4: Simplify right side
    186,803.64x = 30,218,100,756.30
  5. Step 5: Solve for x
    x = 30,218,100,756.30/186,803.64
  6. Step 6: Final answer
    x = 161,763.98

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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.