Home / 163,241.37-225,262.10-90,640.53

Finding the Fourth Proportional to 163,241.37, 225,262.10 and 90,640.53

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Solution

The fourth proportional to 163,241.37, 225,262.10 and 90,640.53 is: 125,077.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,241.37 : 225,262.10 = 90,640.53 : x
  2. Step 2: Convert to fraction form
    163,241.37/225,262.10 = 90,640.53/x
  3. Step 3: Cross multiply
    163,241.37x = 225,262.10 × 90,640.53
  4. Step 4: Simplify right side
    163,241.37x = 20,417,876,132.91
  5. Step 5: Solve for x
    x = 20,417,876,132.91/163,241.37
  6. Step 6: Final answer
    x = 125,077.83

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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.