Home / 129,996.55-179,396.42-76,282.46

Finding the Fourth Proportional to 129,996.55, 179,396.42 and 76,282.46

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Solution

The fourth proportional to 129,996.55, 179,396.42 and 76,282.46 is: 105,270.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,996.55 : 179,396.42 = 76,282.46 : x
  2. Step 2: Convert to fraction form
    129,996.55/179,396.42 = 76,282.46/x
  3. Step 3: Cross multiply
    129,996.55x = 179,396.42 × 76,282.46
  4. Step 4: Simplify right side
    129,996.55x = 13,684,800,056.22
  5. Step 5: Solve for x
    x = 13,684,800,056.22/129,996.55
  6. Step 6: Final answer
    x = 105,270.49

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1.5x scale

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.