Home / 149,918.04-206,910.72-86,243.40

Finding the Fourth Proportional to 149,918.04, 206,910.72 and 86,243.40

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Solution

The fourth proportional to 149,918.04, 206,910.72 and 86,243.40 is: 119,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,918.04 : 206,910.72 = 86,243.40 : x
  2. Step 2: Convert to fraction form
    149,918.04/206,910.72 = 86,243.40/x
  3. Step 3: Cross multiply
    149,918.04x = 206,910.72 × 86,243.40
  4. Step 4: Simplify right side
    149,918.04x = 17,844,683,989.25
  5. Step 5: Solve for x
    x = 17,844,683,989.25/149,918.04
  6. Step 6: Final answer
    x = 119,029.60

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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.