Home / 138,434.45-207,699.86-43,679.26

Finding the Fourth Proportional to 138,434.45, 207,699.86 and 43,679.26

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Solution

The fourth proportional to 138,434.45, 207,699.86 and 43,679.26 is: 65,534.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,434.45 : 207,699.86 = 43,679.26 : x
  2. Step 2: Convert to fraction form
    138,434.45/207,699.86 = 43,679.26/x
  3. Step 3: Cross multiply
    138,434.45x = 207,699.86 × 43,679.26
  4. Step 4: Simplify right side
    138,434.45x = 9,072,176,186.90
  5. Step 5: Solve for x
    x = 9,072,176,186.90/138,434.45
  6. Step 6: Final answer
    x = 65,534.09

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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.