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Finding the Fourth Proportional to 163,367.16, 225,451.74 and 91,748.72

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Solution

The fourth proportional to 163,367.16, 225,451.74 and 91,748.72 is: 126,616.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,367.16 : 225,451.74 = 91,748.72 : x
  2. Step 2: Convert to fraction form
    163,367.16/225,451.74 = 91,748.72/x
  3. Step 3: Cross multiply
    163,367.16x = 225,451.74 × 91,748.72
  4. Step 4: Simplify right side
    163,367.16x = 20,684,908,566.77
  5. Step 5: Solve for x
    x = 20,684,908,566.77/163,367.16
  6. Step 6: Final answer
    x = 126,616.07

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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.