Home / 125,934.03-188,900.87-86,371.20

Finding the Fourth Proportional to 125,934.03, 188,900.87 and 86,371.20

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Solution

The fourth proportional to 125,934.03, 188,900.87 and 86,371.20 is: 129,556.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,934.03 : 188,900.87 = 86,371.20 : x
  2. Step 2: Convert to fraction form
    125,934.03/188,900.87 = 86,371.20/x
  3. Step 3: Cross multiply
    125,934.03x = 188,900.87 × 86,371.20
  4. Step 4: Simplify right side
    125,934.03x = 16,315,594,391.09
  5. Step 5: Solve for x
    x = 16,315,594,391.09/125,934.03
  6. Step 6: Final answer
    x = 129,556.68

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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.