Home / 259,829.08-389,754.54-126,821.21

Finding the Fourth Proportional to 259,829.08, 389,754.54 and 126,821.21

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Solution

The fourth proportional to 259,829.08, 389,754.54 and 126,821.21 is: 190,237.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,829.08 : 389,754.54 = 126,821.21 : x
  2. Step 2: Convert to fraction form
    259,829.08/389,754.54 = 126,821.21/x
  3. Step 3: Cross multiply
    259,829.08x = 389,754.54 × 126,821.21
  4. Step 4: Simplify right side
    259,829.08x = 49,429,140,179.23
  5. Step 5: Solve for x
    x = 49,429,140,179.23/259,829.08
  6. Step 6: Final answer
    x = 190,237.14

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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.