Home / 104,115.20-143,921.10-92,895.90

Finding the Fourth Proportional to 104,115.20, 143,921.10 and 92,895.90

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Solution

The fourth proportional to 104,115.20, 143,921.10 and 92,895.90 is: 128,412.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,115.20 : 143,921.10 = 92,895.90 : x
  2. Step 2: Convert to fraction form
    104,115.20/143,921.10 = 92,895.90/x
  3. Step 3: Cross multiply
    104,115.20x = 143,921.10 × 92,895.90
  4. Step 4: Simplify right side
    104,115.20x = 13,369,680,113.49
  5. Step 5: Solve for x
    x = 13,369,680,113.49/104,115.20
  6. Step 6: Final answer
    x = 128,412.38

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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.