Home / 289,788.56-434,645.88-112,174.04

Finding the Fourth Proportional to 289,788.56, 434,645.88 and 112,174.04

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Solution

The fourth proportional to 289,788.56, 434,645.88 and 112,174.04 is: 168,246.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,788.56 : 434,645.88 = 112,174.04 : x
  2. Step 2: Convert to fraction form
    289,788.56/434,645.88 = 112,174.04/x
  3. Step 3: Cross multiply
    289,788.56x = 434,645.88 × 112,174.04
  4. Step 4: Simplify right side
    289,788.56x = 48,755,984,328.96
  5. Step 5: Solve for x
    x = 48,755,984,328.96/289,788.56
  6. Step 6: Final answer
    x = 168,246.75

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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.