Home / 202,078.02-278,751.90-126,495.30

Finding the Fourth Proportional to 202,078.02, 278,751.90 and 126,495.30

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Solution

The fourth proportional to 202,078.02, 278,751.90 and 126,495.30 is: 174,491.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,078.02 : 278,751.90 = 126,495.30 : x
  2. Step 2: Convert to fraction form
    202,078.02/278,751.90 = 126,495.30/x
  3. Step 3: Cross multiply
    202,078.02x = 278,751.90 × 126,495.30
  4. Step 4: Simplify right side
    202,078.02x = 35,260,805,216.07
  5. Step 5: Solve for x
    x = 35,260,805,216.07/202,078.02
  6. Step 6: Final answer
    x = 174,491.05

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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.