Home / 230,829.90-346,158.45-81,012.30

Finding the Fourth Proportional to 230,829.90, 346,158.45 and 81,012.30

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Solution

The fourth proportional to 230,829.90, 346,158.45 and 81,012.30 is: 121,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,829.90 : 346,158.45 = 81,012.30 : x
  2. Step 2: Convert to fraction form
    230,829.90/346,158.45 = 81,012.30/x
  3. Step 3: Cross multiply
    230,829.90x = 346,158.45 × 81,012.30
  4. Step 4: Simplify right side
    230,829.90x = 28,043,092,198.94
  5. Step 5: Solve for x
    x = 28,043,092,198.94/230,829.90
  6. Step 6: Final answer
    x = 121,488.13

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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.