Home / 101,584.45-139,865.79-89,477.38

Finding the Fourth Proportional to 101,584.45, 139,865.79 and 89,477.38

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Solution

The fourth proportional to 101,584.45, 139,865.79 and 89,477.38 is: 123,196.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,584.45 : 139,865.79 = 89,477.38 : x
  2. Step 2: Convert to fraction form
    101,584.45/139,865.79 = 89,477.38/x
  3. Step 3: Cross multiply
    101,584.45x = 139,865.79 × 89,477.38
  4. Step 4: Simplify right side
    101,584.45x = 12,514,823,405.96
  5. Step 5: Solve for x
    x = 12,514,823,405.96/101,584.45
  6. Step 6: Final answer
    x = 123,196.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.