Home / 109,320.20-164,018.70-39,201.80

Finding the Fourth Proportional to 109,320.20, 164,018.70 and 39,201.80

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Solution

The fourth proportional to 109,320.20, 164,018.70 and 39,201.80 is: 58,816.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,320.20 : 164,018.70 = 39,201.80 : x
  2. Step 2: Convert to fraction form
    109,320.20/164,018.70 = 39,201.80/x
  3. Step 3: Cross multiply
    109,320.20x = 164,018.70 × 39,201.80
  4. Step 4: Simplify right side
    109,320.20x = 6,429,828,273.66
  5. Step 5: Solve for x
    x = 6,429,828,273.66/109,320.20
  6. Step 6: Final answer
    x = 58,816.47

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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.