Home / 149,821.74-206,795.70-86,180.04

Finding the Fourth Proportional to 149,821.74, 206,795.70 and 86,180.04

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Solution

The fourth proportional to 149,821.74, 206,795.70 and 86,180.04 is: 118,952.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,821.74 : 206,795.70 = 86,180.04 : x
  2. Step 2: Convert to fraction form
    149,821.74/206,795.70 = 86,180.04/x
  3. Step 3: Cross multiply
    149,821.74x = 206,795.70 × 86,180.04
  4. Step 4: Simplify right side
    149,821.74x = 17,821,661,697.83
  5. Step 5: Solve for x
    x = 17,821,661,697.83/149,821.74
  6. Step 6: Final answer
    x = 118,952.44

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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.