Home / 215,637.12-323,347.14-125,708.76

Finding the Fourth Proportional to 215,637.12, 323,347.14 and 125,708.76

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Solution

The fourth proportional to 215,637.12, 323,347.14 and 125,708.76 is: 188,499.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,637.12 : 323,347.14 = 125,708.76 : x
  2. Step 2: Convert to fraction form
    215,637.12/323,347.14 = 125,708.76/x
  3. Step 3: Cross multiply
    215,637.12x = 323,347.14 × 125,708.76
  4. Step 4: Simplify right side
    215,637.12x = 40,647,568,018.95
  5. Step 5: Solve for x
    x = 40,647,568,018.95/215,637.12
  6. Step 6: Final answer
    x = 188,499.87

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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.