Home / 239,396.90-330,370.02-131,970.80

Finding the Fourth Proportional to 239,396.90, 330,370.02 and 131,970.80

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Solution

The fourth proportional to 239,396.90, 330,370.02 and 131,970.80 is: 182,120.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,396.90 : 330,370.02 = 131,970.80 : x
  2. Step 2: Convert to fraction form
    239,396.90/330,370.02 = 131,970.80/x
  3. Step 3: Cross multiply
    239,396.90x = 330,370.02 × 131,970.80
  4. Step 4: Simplify right side
    239,396.90x = 43,599,196,661.34
  5. Step 5: Solve for x
    x = 43,599,196,661.34/239,396.90
  6. Step 6: Final answer
    x = 182,120.98

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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.