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Finding the Fourth Proportional to 168,432.13, 232,435.78 and 92,980.09

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Solution

The fourth proportional to 168,432.13, 232,435.78 and 92,980.09 is: 128,312.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,432.13 : 232,435.78 = 92,980.09 : x
  2. Step 2: Convert to fraction form
    168,432.13/232,435.78 = 92,980.09/x
  3. Step 3: Cross multiply
    168,432.13x = 232,435.78 × 92,980.09
  4. Step 4: Simplify right side
    168,432.13x = 21,611,899,743.62
  5. Step 5: Solve for x
    x = 21,611,899,743.62/168,432.13
  6. Step 6: Final answer
    x = 128,312.22

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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.