Home / 134,520.80-201,781.20-120,005.60

Finding the Fourth Proportional to 134,520.80, 201,781.20 and 120,005.60

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Solution

The fourth proportional to 134,520.80, 201,781.20 and 120,005.60 is: 180,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,520.80 : 201,781.20 = 120,005.60 : x
  2. Step 2: Convert to fraction form
    134,520.80/201,781.20 = 120,005.60/x
  3. Step 3: Cross multiply
    134,520.80x = 201,781.20 × 120,005.60
  4. Step 4: Simplify right side
    134,520.80x = 24,214,873,974.72
  5. Step 5: Solve for x
    x = 24,214,873,974.72/134,520.80
  6. Step 6: Final answer
    x = 180,008.40

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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.