Home / 104,186.57-143,778.15-56,439.88

Finding the Fourth Proportional to 104,186.57, 143,778.15 and 56,439.88

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Solution

The fourth proportional to 104,186.57, 143,778.15 and 56,439.88 is: 77,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,186.57 : 143,778.15 = 56,439.88 : x
  2. Step 2: Convert to fraction form
    104,186.57/143,778.15 = 56,439.88/x
  3. Step 3: Cross multiply
    104,186.57x = 143,778.15 × 56,439.88
  4. Step 4: Simplify right side
    104,186.57x = 8,114,821,173.18
  5. Step 5: Solve for x
    x = 8,114,821,173.18/104,186.57
  6. Step 6: Final answer
    x = 77,887.40

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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.