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Finding the Fourth Proportional to 109,339.58, 163,410.30 and 79,819.58

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Solution

The fourth proportional to 109,339.58, 163,410.30 and 79,819.58 is: 119,292.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,339.58 : 163,410.30 = 79,819.58 : x
  2. Step 2: Convert to fraction form
    109,339.58/163,410.30 = 79,819.58/x
  3. Step 3: Cross multiply
    109,339.58x = 163,410.30 × 79,819.58
  4. Step 4: Simplify right side
    109,339.58x = 13,043,340,696.62
  5. Step 5: Solve for x
    x = 13,043,340,696.62/109,339.58
  6. Step 6: Final answer
    x = 119,292.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.