Home / 135,799.20-203,852.40-80,426.40

Finding the Fourth Proportional to 135,799.20, 203,852.40 and 80,426.40

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Solution

The fourth proportional to 135,799.20, 203,852.40 and 80,426.40 is: 120,730.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,799.20 : 203,852.40 = 80,426.40 : x
  2. Step 2: Convert to fraction form
    135,799.20/203,852.40 = 80,426.40/x
  3. Step 3: Cross multiply
    135,799.20x = 203,852.40 × 80,426.40
  4. Step 4: Simplify right side
    135,799.20x = 16,395,114,663.36
  5. Step 5: Solve for x
    x = 16,395,114,663.36/135,799.20
  6. Step 6: Final answer
    x = 120,730.57

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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.