Home / 123,721.72-185,545.55-64,525.09

Finding the Fourth Proportional to 123,721.72, 185,545.55 and 64,525.09

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Solution

The fourth proportional to 123,721.72, 185,545.55 and 64,525.09 is: 96,768.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,721.72 : 185,545.55 = 64,525.09 : x
  2. Step 2: Convert to fraction form
    123,721.72/185,545.55 = 64,525.09/x
  3. Step 3: Cross multiply
    123,721.72x = 185,545.55 × 64,525.09
  4. Step 4: Simplify right side
    123,721.72x = 11,972,343,312.85
  5. Step 5: Solve for x
    x = 11,972,343,312.85/123,721.72
  6. Step 6: Final answer
    x = 96,768.32

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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.