Home / 289,780.54-434,633.90-112,166.04

Finding the Fourth Proportional to 289,780.54, 434,633.90 and 112,166.04

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Solution

The fourth proportional to 289,780.54, 434,633.90 and 112,166.04 is: 168,234.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,780.54 : 434,633.90 = 112,166.04 : x
  2. Step 2: Convert to fraction form
    289,780.54/434,633.90 = 112,166.04/x
  3. Step 3: Cross multiply
    289,780.54x = 434,633.90 × 112,166.04
  4. Step 4: Simplify right side
    289,780.54x = 48,751,163,412.76
  5. Step 5: Solve for x
    x = 48,751,163,412.76/289,780.54
  6. Step 6: Final answer
    x = 168,234.77

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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.