Home / 205,042.80-307,564.20-125,900.40

Finding the Fourth Proportional to 205,042.80, 307,564.20 and 125,900.40

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Solution

The fourth proportional to 205,042.80, 307,564.20 and 125,900.40 is: 188,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,042.80 : 307,564.20 = 125,900.40 : x
  2. Step 2: Convert to fraction form
    205,042.80/307,564.20 = 125,900.40/x
  3. Step 3: Cross multiply
    205,042.80x = 307,564.20 × 125,900.40
  4. Step 4: Simplify right side
    205,042.80x = 38,722,455,805.68
  5. Step 5: Solve for x
    x = 38,722,455,805.68/205,042.80
  6. Step 6: Final answer
    x = 188,850.60

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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.