Home / 112,909.61-169,364.49-28,676.09

Finding the Fourth Proportional to 112,909.61, 169,364.49 and 28,676.09

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Solution

The fourth proportional to 112,909.61, 169,364.49 and 28,676.09 is: 43,014.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,909.61 : 169,364.49 = 28,676.09 : x
  2. Step 2: Convert to fraction form
    112,909.61/169,364.49 = 28,676.09/x
  3. Step 3: Cross multiply
    112,909.61x = 169,364.49 × 28,676.09
  4. Step 4: Simplify right side
    112,909.61x = 4,856,711,673.92
  5. Step 5: Solve for x
    x = 4,856,711,673.92/112,909.61
  6. Step 6: Final answer
    x = 43,014.16

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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.