Home / 104,129.13-143,698.31-56,382.36

Finding the Fourth Proportional to 104,129.13, 143,698.31 and 56,382.36

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Solution

The fourth proportional to 104,129.13, 143,698.31 and 56,382.36 is: 77,807.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,129.13 : 143,698.31 = 56,382.36 : x
  2. Step 2: Convert to fraction form
    104,129.13/143,698.31 = 56,382.36/x
  3. Step 3: Cross multiply
    104,129.13x = 143,698.31 × 56,382.36
  4. Step 4: Simplify right side
    104,129.13x = 8,102,049,563.90
  5. Step 5: Solve for x
    x = 8,102,049,563.90/104,129.13
  6. Step 6: Final answer
    x = 77,807.71

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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.