Home / 148,031.50-204,283.47-80,963.50

Finding the Fourth Proportional to 148,031.50, 204,283.47 and 80,963.50

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Solution

The fourth proportional to 148,031.50, 204,283.47 and 80,963.50 is: 111,729.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,031.50 : 204,283.47 = 80,963.50 : x
  2. Step 2: Convert to fraction form
    148,031.50/204,283.47 = 80,963.50/x
  3. Step 3: Cross multiply
    148,031.50x = 204,283.47 × 80,963.50
  4. Step 4: Simplify right side
    148,031.50x = 16,539,504,723.35
  5. Step 5: Solve for x
    x = 16,539,504,723.35/148,031.50
  6. Step 6: Final answer
    x = 111,729.63

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1.5x scale

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.