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Finding the Fourth Proportional to 112,228, 154,877.88 and 61,930.24

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Solution

The fourth proportional to 112,228, 154,877.88 and 61,930.24 is: 85,465.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,228 : 154,877.88 = 61,930.24 : x
  2. Step 2: Convert to fraction form
    112,228/154,877.88 = 61,930.24/x
  3. Step 3: Cross multiply
    112,228x = 154,877.88 × 61,930.24
  4. Step 4: Simplify right side
    112,228x = 9,591,624,279.09
  5. Step 5: Solve for x
    x = 9,591,624,279.09/112,228
  6. Step 6: Final answer
    x = 85,465.52

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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.