Home / 126,399.69-174,428.44-72,683.43

Finding the Fourth Proportional to 126,399.69, 174,428.44 and 72,683.43

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Solution

The fourth proportional to 126,399.69, 174,428.44 and 72,683.43 is: 100,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,399.69 : 174,428.44 = 72,683.43 : x
  2. Step 2: Convert to fraction form
    126,399.69/174,428.44 = 72,683.43/x
  3. Step 3: Cross multiply
    126,399.69x = 174,428.44 × 72,683.43
  4. Step 4: Simplify right side
    126,399.69x = 12,678,056,472.93
  5. Step 5: Solve for x
    x = 12,678,056,472.93/126,399.69
  6. Step 6: Final answer
    x = 100,301.33

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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.