Home / 201,660.90-302,342.94-68,505.36

Finding the Fourth Proportional to 201,660.90, 302,342.94 and 68,505.36

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Solution

The fourth proportional to 201,660.90, 302,342.94 and 68,505.36 is: 102,707.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,660.90 : 302,342.94 = 68,505.36 : x
  2. Step 2: Convert to fraction form
    201,660.90/302,342.94 = 68,505.36/x
  3. Step 3: Cross multiply
    201,660.90x = 302,342.94 × 68,505.36
  4. Step 4: Simplify right side
    201,660.90x = 20,712,111,948.16
  5. Step 5: Solve for x
    x = 20,712,111,948.16/201,660.90
  6. Step 6: Final answer
    x = 102,707.62

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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.