Home / 135,670.34-203,507.23-51,407.86

Finding the Fourth Proportional to 135,670.34, 203,507.23 and 51,407.86

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Solution

The fourth proportional to 135,670.34, 203,507.23 and 51,407.86 is: 77,112.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,670.34 : 203,507.23 = 51,407.86 : x
  2. Step 2: Convert to fraction form
    135,670.34/203,507.23 = 51,407.86/x
  3. Step 3: Cross multiply
    135,670.34x = 203,507.23 × 51,407.86
  4. Step 4: Simplify right side
    135,670.34x = 10,461,870,551.54
  5. Step 5: Solve for x
    x = 10,461,870,551.54/135,670.34
  6. Step 6: Final answer
    x = 77,112.44

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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.