Home / 147,262.78-203,249.27-86,829.82

Finding the Fourth Proportional to 147,262.78, 203,249.27 and 86,829.82

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Solution

The fourth proportional to 147,262.78, 203,249.27 and 86,829.82 is: 119,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,262.78 : 203,249.27 = 86,829.82 : x
  2. Step 2: Convert to fraction form
    147,262.78/203,249.27 = 86,829.82/x
  3. Step 3: Cross multiply
    147,262.78x = 203,249.27 × 86,829.82
  4. Step 4: Simplify right side
    147,262.78x = 17,648,097,529.23
  5. Step 5: Solve for x
    x = 17,648,097,529.23/147,262.78
  6. Step 6: Final answer
    x = 119,840.86

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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.