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Finding the Fourth Proportional to 134,877.60, 202,143.60 and 120,016.80

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Solution

The fourth proportional to 134,877.60, 202,143.60 and 120,016.80 is: 179,871.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,877.60 : 202,143.60 = 120,016.80 : x
  2. Step 2: Convert to fraction form
    134,877.60/202,143.60 = 120,016.80/x
  3. Step 3: Cross multiply
    134,877.60x = 202,143.60 × 120,016.80
  4. Step 4: Simplify right side
    134,877.60x = 24,260,628,012.48
  5. Step 5: Solve for x
    x = 24,260,628,012.48/134,877.60
  6. Step 6: Final answer
    x = 179,871.44

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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.