Home / 186,742.80-279,945.48-68,331.60

Finding the Fourth Proportional to 186,742.80, 279,945.48 and 68,331.60

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Solution

The fourth proportional to 186,742.80, 279,945.48 and 68,331.60 is: 102,435.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,742.80 : 279,945.48 = 68,331.60 : x
  2. Step 2: Convert to fraction form
    186,742.80/279,945.48 = 68,331.60/x
  3. Step 3: Cross multiply
    186,742.80x = 279,945.48 × 68,331.60
  4. Step 4: Simplify right side
    186,742.80x = 19,129,122,561.17
  5. Step 5: Solve for x
    x = 19,129,122,561.17/186,742.80
  6. Step 6: Final answer
    x = 102,435.66

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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.