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Finding the Fourth Proportional to 112,052, 168,106.80 and 38,180

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Solution

The fourth proportional to 112,052, 168,106.80 and 38,180 is: 57,279.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,052 : 168,106.80 = 38,180 : x
  2. Step 2: Convert to fraction form
    112,052/168,106.80 = 38,180/x
  3. Step 3: Cross multiply
    112,052x = 168,106.80 × 38,180
  4. Step 4: Simplify right side
    112,052x = 6,418,317,624
  5. Step 5: Solve for x
    x = 6,418,317,624/112,052
  6. Step 6: Final answer
    x = 57,279.81

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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.