Home / 104,164.77-143,747.31-56,418.12

Finding the Fourth Proportional to 104,164.77, 143,747.31 and 56,418.12

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Solution

The fourth proportional to 104,164.77, 143,747.31 and 56,418.12 is: 77,856.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,164.77 : 143,747.31 = 56,418.12 : x
  2. Step 2: Convert to fraction form
    104,164.77/143,747.31 = 56,418.12/x
  3. Step 3: Cross multiply
    104,164.77x = 143,747.31 × 56,418.12
  4. Step 4: Simplify right side
    104,164.77x = 8,109,952,985.26
  5. Step 5: Solve for x
    x = 8,109,952,985.26/104,164.77
  6. Step 6: Final answer
    x = 77,856.97

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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.