Home / 138,890.30-208,057.96-63,907.64

Finding the Fourth Proportional to 138,890.30, 208,057.96 and 63,907.64

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Solution

The fourth proportional to 138,890.30, 208,057.96 and 63,907.64 is: 95,733.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,890.30 : 208,057.96 = 63,907.64 : x
  2. Step 2: Convert to fraction form
    138,890.30/208,057.96 = 63,907.64/x
  3. Step 3: Cross multiply
    138,890.30x = 208,057.96 × 63,907.64
  4. Step 4: Simplify right side
    138,890.30x = 13,296,493,206.81
  5. Step 5: Solve for x
    x = 13,296,493,206.81/138,890.30
  6. Step 6: Final answer
    x = 95,733.78

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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.