Home / 115,239.65-172,940.28-47,772.73

Finding the Fourth Proportional to 115,239.65, 172,940.28 and 47,772.73

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Solution

The fourth proportional to 115,239.65, 172,940.28 and 47,772.73 is: 71,692.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,239.65 : 172,940.28 = 47,772.73 : x
  2. Step 2: Convert to fraction form
    115,239.65/172,940.28 = 47,772.73/x
  3. Step 3: Cross multiply
    115,239.65x = 172,940.28 × 47,772.73
  4. Step 4: Simplify right side
    115,239.65x = 8,261,828,870.21
  5. Step 5: Solve for x
    x = 8,261,828,870.21/115,239.65
  6. Step 6: Final answer
    x = 71,692.59

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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.