Home / 148,683.04-205,177.09-80,698.55

Finding the Fourth Proportional to 148,683.04, 205,177.09 and 80,698.55

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Solution

The fourth proportional to 148,683.04, 205,177.09 and 80,698.55 is: 111,361.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,683.04 : 205,177.09 = 80,698.55 : x
  2. Step 2: Convert to fraction form
    148,683.04/205,177.09 = 80,698.55/x
  3. Step 3: Cross multiply
    148,683.04x = 205,177.09 × 80,698.55
  4. Step 4: Simplify right side
    148,683.04x = 16,557,494,580.60
  5. Step 5: Solve for x
    x = 16,557,494,580.60/148,683.04
  6. Step 6: Final answer
    x = 111,361.02

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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.