Home / 186,069.92-279,029.75-72,157.75

Finding the Fourth Proportional to 186,069.92, 279,029.75 and 72,157.75

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Solution

The fourth proportional to 186,069.92, 279,029.75 and 72,157.75 is: 108,207.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,069.92 : 279,029.75 = 72,157.75 : x
  2. Step 2: Convert to fraction form
    186,069.92/279,029.75 = 72,157.75/x
  3. Step 3: Cross multiply
    186,069.92x = 279,029.75 × 72,157.75
  4. Step 4: Simplify right side
    186,069.92x = 20,134,157,884.70
  5. Step 5: Solve for x
    x = 20,134,157,884.70/186,069.92
  6. Step 6: Final answer
    x = 108,207.49

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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.