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Finding the Fourth Proportional to 194,806.60, 292,008.30 and 105,872.20

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Solution

The fourth proportional to 194,806.60, 292,008.30 and 105,872.20 is: 158,698.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,806.60 : 292,008.30 = 105,872.20 : x
  2. Step 2: Convert to fraction form
    194,806.60/292,008.30 = 105,872.20/x
  3. Step 3: Cross multiply
    194,806.60x = 292,008.30 × 105,872.20
  4. Step 4: Simplify right side
    194,806.60x = 30,915,561,139.26
  5. Step 5: Solve for x
    x = 30,915,561,139.26/194,806.60
  6. Step 6: Final answer
    x = 158,698.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.