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Finding the Fourth Proportional to 109,328.90, 164,022.15 and 39,200.90

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Solution

The fourth proportional to 109,328.90, 164,022.15 and 39,200.90 is: 58,811.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,328.90 : 164,022.15 = 39,200.90 : x
  2. Step 2: Convert to fraction form
    109,328.90/164,022.15 = 39,200.90/x
  3. Step 3: Cross multiply
    109,328.90x = 164,022.15 × 39,200.90
  4. Step 4: Simplify right side
    109,328.90x = 6,429,815,899.94
  5. Step 5: Solve for x
    x = 6,429,815,899.94/109,328.90
  6. Step 6: Final answer
    x = 58,811.68

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1.5x scale

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.