Home / 163,436.84-225,541.50-91,815.35

Finding the Fourth Proportional to 163,436.84, 225,541.50 and 91,815.35

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Solution

The fourth proportional to 163,436.84, 225,541.50 and 91,815.35 is: 126,704.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,436.84 : 225,541.50 = 91,815.35 : x
  2. Step 2: Convert to fraction form
    163,436.84/225,541.50 = 91,815.35/x
  3. Step 3: Cross multiply
    163,436.84x = 225,541.50 × 91,815.35
  4. Step 4: Simplify right side
    163,436.84x = 20,708,171,762.03
  5. Step 5: Solve for x
    x = 20,708,171,762.03/163,436.84
  6. Step 6: Final answer
    x = 126,704.43

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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.