Home / 112,913.62-169,370.49-28,680.10

Finding the Fourth Proportional to 112,913.62, 169,370.49 and 28,680.10

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Solution

The fourth proportional to 112,913.62, 169,370.49 and 28,680.10 is: 43,020.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,913.62 : 169,370.49 = 28,680.10 : x
  2. Step 2: Convert to fraction form
    112,913.62/169,370.49 = 28,680.10/x
  3. Step 3: Cross multiply
    112,913.62x = 169,370.49 × 28,680.10
  4. Step 4: Simplify right side
    112,913.62x = 4,857,562,590.25
  5. Step 5: Solve for x
    x = 4,857,562,590.25/112,913.62
  6. Step 6: Final answer
    x = 43,020.17

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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.