Home / 104,186.46-143,777.98-56,439.78

Finding the Fourth Proportional to 104,186.46, 143,777.98 and 56,439.78

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Solution

The fourth proportional to 104,186.46, 143,777.98 and 56,439.78 is: 77,887.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,186.46 : 143,777.98 = 56,439.78 : x
  2. Step 2: Convert to fraction form
    104,186.46/143,777.98 = 56,439.78/x
  3. Step 3: Cross multiply
    104,186.46x = 143,777.98 × 56,439.78
  4. Step 4: Simplify right side
    104,186.46x = 8,114,797,560.04
  5. Step 5: Solve for x
    x = 8,114,797,560.04/104,186.46
  6. Step 6: Final answer
    x = 77,887.26

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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.