Home / 186,430.20-279,645.30-81,454.20

Finding the Fourth Proportional to 186,430.20, 279,645.30 and 81,454.20

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Solution

The fourth proportional to 186,430.20, 279,645.30 and 81,454.20 is: 122,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,430.20 : 279,645.30 = 81,454.20 : x
  2. Step 2: Convert to fraction form
    186,430.20/279,645.30 = 81,454.20/x
  3. Step 3: Cross multiply
    186,430.20x = 279,645.30 × 81,454.20
  4. Step 4: Simplify right side
    186,430.20x = 22,778,284,195.26
  5. Step 5: Solve for x
    x = 22,778,284,195.26/186,430.20
  6. Step 6: Final answer
    x = 122,181.30

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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.