Home / 230,726.70-346,090.05-81,135.90

Finding the Fourth Proportional to 230,726.70, 346,090.05 and 81,135.90

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Solution

The fourth proportional to 230,726.70, 346,090.05 and 81,135.90 is: 121,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,726.70 : 346,090.05 = 81,135.90 : x
  2. Step 2: Convert to fraction form
    230,726.70/346,090.05 = 81,135.90/x
  3. Step 3: Cross multiply
    230,726.70x = 346,090.05 × 81,135.90
  4. Step 4: Simplify right side
    230,726.70x = 28,080,327,687.80
  5. Step 5: Solve for x
    x = 28,080,327,687.80/230,726.70
  6. Step 6: Final answer
    x = 121,703.85

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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.