Home / 109,400.34-164,129.69-39,280.26

Finding the Fourth Proportional to 109,400.34, 164,129.69 and 39,280.26

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Solution

The fourth proportional to 109,400.34, 164,129.69 and 39,280.26 is: 58,930.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,400.34 : 164,129.69 = 39,280.26 : x
  2. Step 2: Convert to fraction form
    109,400.34/164,129.69 = 39,280.26/x
  3. Step 3: Cross multiply
    109,400.34x = 164,129.69 × 39,280.26
  4. Step 4: Simplify right side
    109,400.34x = 6,447,056,896.92
  5. Step 5: Solve for x
    x = 6,447,056,896.92/109,400.34
  6. Step 6: Final answer
    x = 58,930.87

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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.