Home / 148,289.40-221,915.70-135,847.80

Finding the Fourth Proportional to 148,289.40, 221,915.70 and 135,847.80

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Solution

The fourth proportional to 148,289.40, 221,915.70 and 135,847.80 is: 203,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,289.40 : 221,915.70 = 135,847.80 : x
  2. Step 2: Convert to fraction form
    148,289.40/221,915.70 = 135,847.80/x
  3. Step 3: Cross multiply
    148,289.40x = 221,915.70 × 135,847.80
  4. Step 4: Simplify right side
    148,289.40x = 30,146,759,630.46
  5. Step 5: Solve for x
    x = 30,146,759,630.46/148,289.40
  6. Step 6: Final answer
    x = 203,296.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.