Home / 109,315.20-164,011.20-39,196.80

Finding the Fourth Proportional to 109,315.20, 164,011.20 and 39,196.80

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Solution

The fourth proportional to 109,315.20, 164,011.20 and 39,196.80 is: 58,808.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,315.20 : 164,011.20 = 39,196.80 : x
  2. Step 2: Convert to fraction form
    109,315.20/164,011.20 = 39,196.80/x
  3. Step 3: Cross multiply
    109,315.20x = 164,011.20 × 39,196.80
  4. Step 4: Simplify right side
    109,315.20x = 6,428,714,204.16
  5. Step 5: Solve for x
    x = 6,428,714,204.16/109,315.20
  6. Step 6: Final answer
    x = 58,808.97

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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.