Home / 259,669.12-389,554.18-99,733.35

Finding the Fourth Proportional to 259,669.12, 389,554.18 and 99,733.35

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Solution

The fourth proportional to 259,669.12, 389,554.18 and 99,733.35 is: 149,619.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,669.12 : 389,554.18 = 99,733.35 : x
  2. Step 2: Convert to fraction form
    259,669.12/389,554.18 = 99,733.35/x
  3. Step 3: Cross multiply
    259,669.12x = 389,554.18 × 99,733.35
  4. Step 4: Simplify right side
    259,669.12x = 38,851,543,377.90
  5. Step 5: Solve for x
    x = 38,851,543,377.90/259,669.12
  6. Step 6: Final answer
    x = 149,619.42

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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.