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Finding the Fourth Proportional to 128,050.20, 191,946.20 and 43,752.96

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Solution

The fourth proportional to 128,050.20, 191,946.20 and 43,752.96 is: 65,585.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,050.20 : 191,946.20 = 43,752.96 : x
  2. Step 2: Convert to fraction form
    128,050.20/191,946.20 = 43,752.96/x
  3. Step 3: Cross multiply
    128,050.20x = 191,946.20 × 43,752.96
  4. Step 4: Simplify right side
    128,050.20x = 8,398,214,191.99
  5. Step 5: Solve for x
    x = 8,398,214,191.99/128,050.20
  6. Step 6: Final answer
    x = 65,585.33

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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.