Home / 163,429.92-225,539.16-91,808.40

Finding the Fourth Proportional to 163,429.92, 225,539.16 and 91,808.40

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Solution

The fourth proportional to 163,429.92, 225,539.16 and 91,808.40 is: 126,698.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,429.92 : 225,539.16 = 91,808.40 : x
  2. Step 2: Convert to fraction form
    163,429.92/225,539.16 = 91,808.40/x
  3. Step 3: Cross multiply
    163,429.92x = 225,539.16 × 91,808.40
  4. Step 4: Simplify right side
    163,429.92x = 20,706,389,416.94
  5. Step 5: Solve for x
    x = 20,706,389,416.94/163,429.92
  6. Step 6: Final answer
    x = 126,698.89

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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.