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Finding the Fourth Proportional to 145,181.96, 218,625.67 and 126,682.68

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Solution

The fourth proportional to 145,181.96, 218,625.67 and 126,682.68 is: 190,768.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,181.96 : 218,625.67 = 126,682.68 : x
  2. Step 2: Convert to fraction form
    145,181.96/218,625.67 = 126,682.68/x
  3. Step 3: Cross multiply
    145,181.96x = 218,625.67 × 126,682.68
  4. Step 4: Simplify right side
    145,181.96x = 27,696,085,475.69
  5. Step 5: Solve for x
    x = 27,696,085,475.69/145,181.96
  6. Step 6: Final answer
    x = 190,768.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.