Home / 126,247.41-174,284.53-78,516.14

Finding the Fourth Proportional to 126,247.41, 174,284.53 and 78,516.14

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Solution

The fourth proportional to 126,247.41, 174,284.53 and 78,516.14 is: 108,391.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,247.41 : 174,284.53 = 78,516.14 : x
  2. Step 2: Convert to fraction form
    126,247.41/174,284.53 = 78,516.14/x
  3. Step 3: Cross multiply
    126,247.41x = 174,284.53 × 78,516.14
  4. Step 4: Simplify right side
    126,247.41x = 13,684,147,489.60
  5. Step 5: Solve for x
    x = 13,684,147,489.60/126,247.41
  6. Step 6: Final answer
    x = 108,391.51

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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.