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Finding the Fourth Proportional to 117,684.96, 162,367.92 and 72,998.88

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Solution

The fourth proportional to 117,684.96, 162,367.92 and 72,998.88 is: 100,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,684.96 : 162,367.92 = 72,998.88 : x
  2. Step 2: Convert to fraction form
    117,684.96/162,367.92 = 72,998.88/x
  3. Step 3: Cross multiply
    117,684.96x = 162,367.92 × 72,998.88
  4. Step 4: Simplify right side
    117,684.96x = 11,852,676,307.93
  5. Step 5: Solve for x
    x = 11,852,676,307.93/117,684.96
  6. Step 6: Final answer
    x = 100,715.30

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1.5x scale

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.