Home / 112,491.90-168,740.88-49,279.50

Finding the Fourth Proportional to 112,491.90, 168,740.88 and 49,279.50

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Solution

The fourth proportional to 112,491.90, 168,740.88 and 49,279.50 is: 73,920.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,491.90 : 168,740.88 = 49,279.50 : x
  2. Step 2: Convert to fraction form
    112,491.90/168,740.88 = 49,279.50/x
  3. Step 3: Cross multiply
    112,491.90x = 168,740.88 × 49,279.50
  4. Step 4: Simplify right side
    112,491.90x = 8,315,466,195.96
  5. Step 5: Solve for x
    x = 8,315,466,195.96/112,491.90
  6. Step 6: Final answer
    x = 73,920.58

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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.