Home / 101,890.20-152,857.14-30,806.76

Finding the Fourth Proportional to 101,890.20, 152,857.14 and 30,806.76

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Solution

The fourth proportional to 101,890.20, 152,857.14 and 30,806.76 is: 46,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,890.20 : 152,857.14 = 30,806.76 : x
  2. Step 2: Convert to fraction form
    101,890.20/152,857.14 = 30,806.76/x
  3. Step 3: Cross multiply
    101,890.20x = 152,857.14 × 30,806.76
  4. Step 4: Simplify right side
    101,890.20x = 4,709,033,226.27
  5. Step 5: Solve for x
    x = 4,709,033,226.27/101,890.20
  6. Step 6: Final answer
    x = 46,216.74

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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.