Home / 149,485.13-206,289.50-82,417.13

Finding the Fourth Proportional to 149,485.13, 206,289.50 and 82,417.13

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Solution

The fourth proportional to 149,485.13, 206,289.50 and 82,417.13 is: 113,735.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,485.13 : 206,289.50 = 82,417.13 : x
  2. Step 2: Convert to fraction form
    149,485.13/206,289.50 = 82,417.13/x
  3. Step 3: Cross multiply
    149,485.13x = 206,289.50 × 82,417.13
  4. Step 4: Simplify right side
    149,485.13x = 17,001,787,095.60
  5. Step 5: Solve for x
    x = 17,001,787,095.60/149,485.13
  6. Step 6: Final answer
    x = 113,735.64

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Why These Related Problems?

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