Home / 163,421.41-225,509.25-91,787.44

Finding the Fourth Proportional to 163,421.41, 225,509.25 and 91,787.44

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Solution

The fourth proportional to 163,421.41, 225,509.25 and 91,787.44 is: 126,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,421.41 : 225,509.25 = 91,787.44 : x
  2. Step 2: Convert to fraction form
    163,421.41/225,509.25 = 91,787.44/x
  3. Step 3: Cross multiply
    163,421.41x = 225,509.25 × 91,787.44
  4. Step 4: Simplify right side
    163,421.41x = 20,698,916,753.82
  5. Step 5: Solve for x
    x = 20,698,916,753.82/163,421.41
  6. Step 6: Final answer
    x = 126,659.76

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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.