Home / 126,250.41-174,288.66-78,519.15

Finding the Fourth Proportional to 126,250.41, 174,288.66 and 78,519.15

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Solution

The fourth proportional to 126,250.41, 174,288.66 and 78,519.15 is: 108,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,250.41 : 174,288.66 = 78,519.15 : x
  2. Step 2: Convert to fraction form
    126,250.41/174,288.66 = 78,519.15/x
  3. Step 3: Cross multiply
    126,250.41x = 174,288.66 × 78,519.15
  4. Step 4: Simplify right side
    126,250.41x = 13,684,997,437.84
  5. Step 5: Solve for x
    x = 13,684,997,437.84/126,250.41
  6. Step 6: Final answer
    x = 108,395.67

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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.