Home / 121,624.70-182,446.76-42,756.62

Finding the Fourth Proportional to 121,624.70, 182,446.76 and 42,756.62

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Solution

The fourth proportional to 121,624.70, 182,446.76 and 42,756.62 is: 64,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,624.70 : 182,446.76 = 42,756.62 : x
  2. Step 2: Convert to fraction form
    121,624.70/182,446.76 = 42,756.62/x
  3. Step 3: Cross multiply
    121,624.70x = 182,446.76 × 42,756.62
  4. Step 4: Simplify right side
    121,624.70x = 7,800,805,982.21
  5. Step 5: Solve for x
    x = 7,800,805,982.21/121,624.70
  6. Step 6: Final answer
    x = 64,138.34

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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.