Home / 163,587.53-225,748.41-90,989.66

Finding the Fourth Proportional to 163,587.53, 225,748.41 and 90,989.66

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Solution

The fourth proportional to 163,587.53, 225,748.41 and 90,989.66 is: 125,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,587.53 : 225,748.41 = 90,989.66 : x
  2. Step 2: Convert to fraction form
    163,587.53/225,748.41 = 90,989.66/x
  3. Step 3: Cross multiply
    163,587.53x = 225,748.41 × 90,989.66
  4. Step 4: Simplify right side
    163,587.53x = 20,540,769,942.70
  5. Step 5: Solve for x
    x = 20,540,769,942.70/163,587.53
  6. Step 6: Final answer
    x = 125,564.40

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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.