Home / 174,921.80-262,080.30-81,235.40

Finding the Fourth Proportional to 174,921.80, 262,080.30 and 81,235.40

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Solution

The fourth proportional to 174,921.80, 262,080.30 and 81,235.40 is: 121,712.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,921.80 : 262,080.30 = 81,235.40 : x
  2. Step 2: Convert to fraction form
    174,921.80/262,080.30 = 81,235.40/x
  3. Step 3: Cross multiply
    174,921.80x = 262,080.30 × 81,235.40
  4. Step 4: Simplify right side
    174,921.80x = 21,290,198,002.62
  5. Step 5: Solve for x
    x = 21,290,198,002.62/174,921.80
  6. Step 6: Final answer
    x = 121,712.66

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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.