Home / 202,040.10-278,701.20-126,457.38

Finding the Fourth Proportional to 202,040.10, 278,701.20 and 126,457.38

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Solution

The fourth proportional to 202,040.10, 278,701.20 and 126,457.38 is: 174,439.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,040.10 : 278,701.20 = 126,457.38 : x
  2. Step 2: Convert to fraction form
    202,040.10/278,701.20 = 126,457.38/x
  3. Step 3: Cross multiply
    202,040.10x = 278,701.20 × 126,457.38
  4. Step 4: Simplify right side
    202,040.10x = 35,243,823,554.86
  5. Step 5: Solve for x
    x = 35,243,823,554.86/202,040.10
  6. Step 6: Final answer
    x = 174,439.75

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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.