Home / 131,776.80-197,204.40-120,717.60

Finding the Fourth Proportional to 131,776.80, 197,204.40 and 120,717.60

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Solution

The fourth proportional to 131,776.80, 197,204.40 and 120,717.60 is: 180,654.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,776.80 : 197,204.40 = 120,717.60 : x
  2. Step 2: Convert to fraction form
    131,776.80/197,204.40 = 120,717.60/x
  3. Step 3: Cross multiply
    131,776.80x = 197,204.40 × 120,717.60
  4. Step 4: Simplify right side
    131,776.80x = 23,806,041,877.44
  5. Step 5: Solve for x
    x = 23,806,041,877.44/131,776.80
  6. Step 6: Final answer
    x = 180,654.27

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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.