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Finding the Fourth Proportional to 128,355.86, 192,492.84 and 44,095.71

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Solution

The fourth proportional to 128,355.86, 192,492.84 and 44,095.71 is: 66,129.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,355.86 : 192,492.84 = 44,095.71 : x
  2. Step 2: Convert to fraction form
    128,355.86/192,492.84 = 44,095.71/x
  3. Step 3: Cross multiply
    128,355.86x = 192,492.84 × 44,095.71
  4. Step 4: Simplify right side
    128,355.86x = 8,488,108,449.72
  5. Step 5: Solve for x
    x = 8,488,108,449.72/128,355.86
  6. Step 6: Final answer
    x = 66,129.50

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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.