Home / 136,528.90-188,387.04-76,086.34

Finding the Fourth Proportional to 136,528.90, 188,387.04 and 76,086.34

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Solution

The fourth proportional to 136,528.90, 188,387.04 and 76,086.34 is: 104,986.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,528.90 : 188,387.04 = 76,086.34 : x
  2. Step 2: Convert to fraction form
    136,528.90/188,387.04 = 76,086.34/x
  3. Step 3: Cross multiply
    136,528.90x = 188,387.04 × 76,086.34
  4. Step 4: Simplify right side
    136,528.90x = 14,333,680,377.03
  5. Step 5: Solve for x
    x = 14,333,680,377.03/136,528.90
  6. Step 6: Final answer
    x = 104,986.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.