Home / 112,366.20-168,549.30-102,743.40

Finding the Fourth Proportional to 112,366.20, 168,549.30 and 102,743.40

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Solution

The fourth proportional to 112,366.20, 168,549.30 and 102,743.40 is: 154,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,366.20 : 168,549.30 = 102,743.40 : x
  2. Step 2: Convert to fraction form
    112,366.20/168,549.30 = 102,743.40/x
  3. Step 3: Cross multiply
    112,366.20x = 168,549.30 × 102,743.40
  4. Step 4: Simplify right side
    112,366.20x = 17,317,328,149.62
  5. Step 5: Solve for x
    x = 17,317,328,149.62/112,366.20
  6. Step 6: Final answer
    x = 154,115.10

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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.