Home / 137,968.20-206,952.30-102,538.80

Finding the Fourth Proportional to 137,968.20, 206,952.30 and 102,538.80

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Solution

The fourth proportional to 137,968.20, 206,952.30 and 102,538.80 is: 153,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,968.20 : 206,952.30 = 102,538.80 : x
  2. Step 2: Convert to fraction form
    137,968.20/206,952.30 = 102,538.80/x
  3. Step 3: Cross multiply
    137,968.20x = 206,952.30 × 102,538.80
  4. Step 4: Simplify right side
    137,968.20x = 21,220,640,499.24
  5. Step 5: Solve for x
    x = 21,220,640,499.24/137,968.20
  6. Step 6: Final answer
    x = 153,808.20

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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.