Home / 205,029.80-307,602.30-99,852.20

Finding the Fourth Proportional to 205,029.80, 307,602.30 and 99,852.20

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Solution

The fourth proportional to 205,029.80, 307,602.30 and 99,852.20 is: 149,806.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,029.80 : 307,602.30 = 99,852.20 : x
  2. Step 2: Convert to fraction form
    205,029.80/307,602.30 = 99,852.20/x
  3. Step 3: Cross multiply
    205,029.80x = 307,602.30 × 99,852.20
  4. Step 4: Simplify right side
    205,029.80x = 30,714,766,380.06
  5. Step 5: Solve for x
    x = 30,714,766,380.06/205,029.80
  6. Step 6: Final answer
    x = 149,806.35

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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.