Home / 104,134.29-143,705.12-56,387.49

Finding the Fourth Proportional to 104,134.29, 143,705.12 and 56,387.49

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Solution

The fourth proportional to 104,134.29, 143,705.12 and 56,387.49 is: 77,814.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,134.29 : 143,705.12 = 56,387.49 : x
  2. Step 2: Convert to fraction form
    104,134.29/143,705.12 = 56,387.49/x
  3. Step 3: Cross multiply
    104,134.29x = 143,705.12 × 56,387.49
  4. Step 4: Simplify right side
    104,134.29x = 8,103,170,735.01
  5. Step 5: Solve for x
    x = 8,103,170,735.01/104,134.29
  6. Step 6: Final answer
    x = 77,814.63

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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.