Home / 104,189.42-143,781.18-56,443.94

Finding the Fourth Proportional to 104,189.42, 143,781.18 and 56,443.94

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Solution

The fourth proportional to 104,189.42, 143,781.18 and 56,443.94 is: 77,892.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,189.42 : 143,781.18 = 56,443.94 : x
  2. Step 2: Convert to fraction form
    104,189.42/143,781.18 = 56,443.94/x
  3. Step 3: Cross multiply
    104,189.42x = 143,781.18 × 56,443.94
  4. Step 4: Simplify right side
    104,189.42x = 8,115,576,297.05
  5. Step 5: Solve for x
    x = 8,115,576,297.05/104,189.42
  6. Step 6: Final answer
    x = 77,892.52

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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.