Home / 148,030-204,281.40-80,962

Finding the Fourth Proportional to 148,030, 204,281.40 and 80,962

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Solution

The fourth proportional to 148,030, 204,281.40 and 80,962 is: 111,727.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,030 : 204,281.40 = 80,962 : x
  2. Step 2: Convert to fraction form
    148,030/204,281.40 = 80,962/x
  3. Step 3: Cross multiply
    148,030x = 204,281.40 × 80,962
  4. Step 4: Simplify right side
    148,030x = 16,539,030,706.80
  5. Step 5: Solve for x
    x = 16,539,030,706.80/148,030
  6. Step 6: Final answer
    x = 111,727.56

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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.