Home / 289,682.52-434,543.21-100,161.35

Finding the Fourth Proportional to 289,682.52, 434,543.21 and 100,161.35

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Solution

The fourth proportional to 289,682.52, 434,543.21 and 100,161.35 is: 150,248.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,682.52 : 434,543.21 = 100,161.35 : x
  2. Step 2: Convert to fraction form
    289,682.52/434,543.21 = 100,161.35/x
  3. Step 3: Cross multiply
    289,682.52x = 434,543.21 × 100,161.35
  4. Step 4: Simplify right side
    289,682.52x = 43,524,434,546.93
  5. Step 5: Solve for x
    x = 43,524,434,546.93/289,682.52
  6. Step 6: Final answer
    x = 150,248.74

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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.