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Finding the Fourth Proportional to 168,460.80, 232,392.06 and 100,429.86

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Solution

The fourth proportional to 168,460.80, 232,392.06 and 100,429.86 is: 138,543.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,460.80 : 232,392.06 = 100,429.86 : x
  2. Step 2: Convert to fraction form
    168,460.80/232,392.06 = 100,429.86/x
  3. Step 3: Cross multiply
    168,460.80x = 232,392.06 × 100,429.86
  4. Step 4: Simplify right side
    168,460.80x = 23,339,102,050.91
  5. Step 5: Solve for x
    x = 23,339,102,050.91/168,460.80
  6. Step 6: Final answer
    x = 138,543.22

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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.