Home / 132,708.08-199,031.16-76,428.56

Finding the Fourth Proportional to 132,708.08, 199,031.16 and 76,428.56

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Solution

The fourth proportional to 132,708.08, 199,031.16 and 76,428.56 is: 114,625.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,708.08 : 199,031.16 = 76,428.56 : x
  2. Step 2: Convert to fraction form
    132,708.08/199,031.16 = 76,428.56/x
  3. Step 3: Cross multiply
    132,708.08x = 199,031.16 × 76,428.56
  4. Step 4: Simplify right side
    132,708.08x = 15,211,664,953.93
  5. Step 5: Solve for x
    x = 15,211,664,953.93/132,708.08
  6. Step 6: Final answer
    x = 114,625.01

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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.