Home / 230,726.20-346,089.30-81,135.40

Finding the Fourth Proportional to 230,726.20, 346,089.30 and 81,135.40

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Solution

The fourth proportional to 230,726.20, 346,089.30 and 81,135.40 is: 121,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,726.20 : 346,089.30 = 81,135.40 : x
  2. Step 2: Convert to fraction form
    230,726.20/346,089.30 = 81,135.40/x
  3. Step 3: Cross multiply
    230,726.20x = 346,089.30 × 81,135.40
  4. Step 4: Simplify right side
    230,726.20x = 28,080,093,791.22
  5. Step 5: Solve for x
    x = 28,080,093,791.22/230,726.20
  6. Step 6: Final answer
    x = 121,703.10

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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.