Home / 115,239.84-172,859.34-45,069.72

Finding the Fourth Proportional to 115,239.84, 172,859.34 and 45,069.72

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Solution

The fourth proportional to 115,239.84, 172,859.34 and 45,069.72 is: 67,604.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,239.84 : 172,859.34 = 45,069.72 : x
  2. Step 2: Convert to fraction form
    115,239.84/172,859.34 = 45,069.72/x
  3. Step 3: Cross multiply
    115,239.84x = 172,859.34 × 45,069.72
  4. Step 4: Simplify right side
    115,239.84x = 7,790,722,053.18
  5. Step 5: Solve for x
    x = 7,790,722,053.18/115,239.84
  6. Step 6: Final answer
    x = 67,604.42

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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.