Home / 109,680.20-164,585.10-72,348.20

Finding the Fourth Proportional to 109,680.20, 164,585.10 and 72,348.20

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Solution

The fourth proportional to 109,680.20, 164,585.10 and 72,348.20 is: 108,565.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,680.20 : 164,585.10 = 72,348.20 : x
  2. Step 2: Convert to fraction form
    109,680.20/164,585.10 = 72,348.20/x
  3. Step 3: Cross multiply
    109,680.20x = 164,585.10 × 72,348.20
  4. Step 4: Simplify right side
    109,680.20x = 11,907,435,731.82
  5. Step 5: Solve for x
    x = 11,907,435,731.82/109,680.20
  6. Step 6: Final answer
    x = 108,565.04

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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.