Home / 163,421.60-225,497.25-91,787.90

Finding the Fourth Proportional to 163,421.60, 225,497.25 and 91,787.90

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Solution

The fourth proportional to 163,421.60, 225,497.25 and 91,787.90 is: 126,653.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,421.60 : 225,497.25 = 91,787.90 : x
  2. Step 2: Convert to fraction form
    163,421.60/225,497.25 = 91,787.90/x
  3. Step 3: Cross multiply
    163,421.60x = 225,497.25 × 91,787.90
  4. Step 4: Simplify right side
    163,421.60x = 20,697,917,905.79
  5. Step 5: Solve for x
    x = 20,697,917,905.79/163,421.60
  6. Step 6: Final answer
    x = 126,653.51

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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.