Home / 103,768.84-143,190.66-58,445.56

Finding the Fourth Proportional to 103,768.84, 143,190.66 and 58,445.56

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Solution

The fourth proportional to 103,768.84, 143,190.66 and 58,445.56 is: 80,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,768.84 : 143,190.66 = 58,445.56 : x
  2. Step 2: Convert to fraction form
    103,768.84/143,190.66 = 58,445.56/x
  3. Step 3: Cross multiply
    103,768.84x = 143,190.66 × 58,445.56
  4. Step 4: Simplify right side
    103,768.84x = 8,368,858,310.47
  5. Step 5: Solve for x
    x = 8,368,858,310.47/103,768.84
  6. Step 6: Final answer
    x = 80,649.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.