Home / 123,789.50-170,829.08-67,200.48

Finding the Fourth Proportional to 123,789.50, 170,829.08 and 67,200.48

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Solution

The fourth proportional to 123,789.50, 170,829.08 and 67,200.48 is: 92,736.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,789.50 : 170,829.08 = 67,200.48 : x
  2. Step 2: Convert to fraction form
    123,789.50/170,829.08 = 67,200.48/x
  3. Step 3: Cross multiply
    123,789.50x = 170,829.08 × 67,200.48
  4. Step 4: Simplify right side
    123,789.50x = 11,479,796,173.96
  5. Step 5: Solve for x
    x = 11,479,796,173.96/123,789.50
  6. Step 6: Final answer
    x = 92,736.43

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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.