Home / 129,731.75-179,025.75-76,052.52

Finding the Fourth Proportional to 129,731.75, 179,025.75 and 76,052.52

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Solution

The fourth proportional to 129,731.75, 179,025.75 and 76,052.52 is: 104,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,731.75 : 179,025.75 = 76,052.52 : x
  2. Step 2: Convert to fraction form
    129,731.75/179,025.75 = 76,052.52/x
  3. Step 3: Cross multiply
    129,731.75x = 179,025.75 × 76,052.52
  4. Step 4: Simplify right side
    129,731.75x = 13,615,359,432.39
  5. Step 5: Solve for x
    x = 13,615,359,432.39/129,731.75
  6. Step 6: Final answer
    x = 104,950.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.