Home / 243,212.98-335,619.81-135,789.76

Finding the Fourth Proportional to 243,212.98, 335,619.81 and 135,789.76

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Solution

The fourth proportional to 243,212.98, 335,619.81 and 135,789.76 is: 187,382.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,212.98 : 335,619.81 = 135,789.76 : x
  2. Step 2: Convert to fraction form
    243,212.98/335,619.81 = 135,789.76/x
  3. Step 3: Cross multiply
    243,212.98x = 335,619.81 × 135,789.76
  4. Step 4: Simplify right side
    243,212.98x = 45,573,733,451.15
  5. Step 5: Solve for x
    x = 45,573,733,451.15/243,212.98
  6. Step 6: Final answer
    x = 187,382.00

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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.