Home / 135,471.34-203,331.76-68,959

Finding the Fourth Proportional to 135,471.34, 203,331.76 and 68,959

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Solution

The fourth proportional to 135,471.34, 203,331.76 and 68,959 is: 103,502.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,471.34 : 203,331.76 = 68,959 : x
  2. Step 2: Convert to fraction form
    135,471.34/203,331.76 = 68,959/x
  3. Step 3: Cross multiply
    135,471.34x = 203,331.76 × 68,959
  4. Step 4: Simplify right side
    135,471.34x = 14,021,554,837.84
  5. Step 5: Solve for x
    x = 14,021,554,837.84/135,471.34
  6. Step 6: Final answer
    x = 103,502.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.