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Finding the Fourth Proportional to 168,456.76, 232,165.85 and 139,624.58

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Solution

The fourth proportional to 168,456.76, 232,165.85 and 139,624.58 is: 192,429.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,456.76 : 232,165.85 = 139,624.58 : x
  2. Step 2: Convert to fraction form
    168,456.76/232,165.85 = 139,624.58/x
  3. Step 3: Cross multiply
    168,456.76x = 232,165.85 × 139,624.58
  4. Step 4: Simplify right side
    168,456.76x = 32,416,059,296.59
  5. Step 5: Solve for x
    x = 32,416,059,296.59/168,456.76
  6. Step 6: Final answer
    x = 192,429.55

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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.