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Finding the Fourth Proportional to 128,166.08, 192,081.90 and 92,746.70

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Solution

The fourth proportional to 128,166.08, 192,081.90 and 92,746.70 is: 138,999.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,166.08 : 192,081.90 = 92,746.70 : x
  2. Step 2: Convert to fraction form
    128,166.08/192,081.90 = 92,746.70/x
  3. Step 3: Cross multiply
    128,166.08x = 192,081.90 × 92,746.70
  4. Step 4: Simplify right side
    128,166.08x = 17,814,962,354.73
  5. Step 5: Solve for x
    x = 17,814,962,354.73/128,166.08
  6. Step 6: Final answer
    x = 138,999.04

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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.