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Finding the Fourth Proportional to 168,429, 232,432.02 and 92,978.04

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Solution

The fourth proportional to 168,429, 232,432.02 and 92,978.04 is: 128,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,429 : 232,432.02 = 92,978.04 : x
  2. Step 2: Convert to fraction form
    168,429/232,432.02 = 92,978.04/x
  3. Step 3: Cross multiply
    168,429x = 232,432.02 × 92,978.04
  4. Step 4: Simplify right side
    168,429x = 21,611,073,652.84
  5. Step 5: Solve for x
    x = 21,611,073,652.84/168,429
  6. Step 6: Final answer
    x = 128,309.70

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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.