Home / 259,419.16-389,059.04-99,460.36

Finding the Fourth Proportional to 259,419.16, 389,059.04 and 99,460.36

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Solution

The fourth proportional to 259,419.16, 389,059.04 and 99,460.36 is: 149,163.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,419.16 : 389,059.04 = 99,460.36 : x
  2. Step 2: Convert to fraction form
    259,419.16/389,059.04 = 99,460.36/x
  3. Step 3: Cross multiply
    259,419.16x = 389,059.04 × 99,460.36
  4. Step 4: Simplify right side
    259,419.16x = 38,695,952,179.65
  5. Step 5: Solve for x
    x = 38,695,952,179.65/259,419.16
  6. Step 6: Final answer
    x = 149,163.82

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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.