Home / 174,778.80-262,032.12-81,272.40

Finding the Fourth Proportional to 174,778.80, 262,032.12 and 81,272.40

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Solution

The fourth proportional to 174,778.80, 262,032.12 and 81,272.40 is: 121,845.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,778.80 : 262,032.12 = 81,272.40 : x
  2. Step 2: Convert to fraction form
    174,778.80/262,032.12 = 81,272.40/x
  3. Step 3: Cross multiply
    174,778.80x = 262,032.12 × 81,272.40
  4. Step 4: Simplify right side
    174,778.80x = 21,295,979,269.49
  5. Step 5: Solve for x
    x = 21,295,979,269.49/174,778.80
  6. Step 6: Final answer
    x = 121,845.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.