Home / 211,750.60-317,577.39-126,385.54

Finding the Fourth Proportional to 211,750.60, 317,577.39 and 126,385.54

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Solution

The fourth proportional to 211,750.60, 317,577.39 and 126,385.54 is: 189,549.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,750.60 : 317,577.39 = 126,385.54 : x
  2. Step 2: Convert to fraction form
    211,750.60/317,577.39 = 126,385.54/x
  3. Step 3: Cross multiply
    211,750.60x = 317,577.39 × 126,385.54
  4. Step 4: Simplify right side
    211,750.60x = 40,137,189,926.94
  5. Step 5: Solve for x
    x = 40,137,189,926.94/211,750.60
  6. Step 6: Final answer
    x = 189,549.36

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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.