Home / 136,130.40-203,884.56-80,609.76

Finding the Fourth Proportional to 136,130.40, 203,884.56 and 80,609.76

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Solution

The fourth proportional to 136,130.40, 203,884.56 and 80,609.76 is: 120,730.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,130.40 : 203,884.56 = 80,609.76 : x
  2. Step 2: Convert to fraction form
    136,130.40/203,884.56 = 80,609.76/x
  3. Step 3: Cross multiply
    136,130.40x = 203,884.56 × 80,609.76
  4. Step 4: Simplify right side
    136,130.40x = 16,435,085,449.31
  5. Step 5: Solve for x
    x = 16,435,085,449.31/136,130.40
  6. Step 6: Final answer
    x = 120,730.46

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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.