Home / 138,019.88-207,029.48-43,257.32

Finding the Fourth Proportional to 138,019.88, 207,029.48 and 43,257.32

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Solution

The fourth proportional to 138,019.88, 207,029.48 and 43,257.32 is: 64,885.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,019.88 : 207,029.48 = 43,257.32 : x
  2. Step 2: Convert to fraction form
    138,019.88/207,029.48 = 43,257.32/x
  3. Step 3: Cross multiply
    138,019.88x = 207,029.48 × 43,257.32
  4. Step 4: Simplify right side
    138,019.88x = 8,955,540,465.79
  5. Step 5: Solve for x
    x = 8,955,540,465.79/138,019.88
  6. Step 6: Final answer
    x = 64,885.87

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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.