Home / 186,882-280,410.48-81,731.04

Finding the Fourth Proportional to 186,882, 280,410.48 and 81,731.04

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Solution

The fourth proportional to 186,882, 280,410.48 and 81,731.04 is: 122,634.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,882 : 280,410.48 = 81,731.04 : x
  2. Step 2: Convert to fraction form
    186,882/280,410.48 = 81,731.04/x
  3. Step 3: Cross multiply
    186,882x = 280,410.48 × 81,731.04
  4. Step 4: Simplify right side
    186,882x = 22,918,240,157.30
  5. Step 5: Solve for x
    x = 22,918,240,157.30/186,882
  6. Step 6: Final answer
    x = 122,634.82

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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.