Home / 100,692.69-151,029.27-30,572.61

Finding the Fourth Proportional to 100,692.69, 151,029.27 and 30,572.61

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Solution

The fourth proportional to 100,692.69, 151,029.27 and 30,572.61 is: 45,855.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,692.69 : 151,029.27 = 30,572.61 : x
  2. Step 2: Convert to fraction form
    100,692.69/151,029.27 = 30,572.61/x
  3. Step 3: Cross multiply
    100,692.69x = 151,029.27 × 30,572.61
  4. Step 4: Simplify right side
    100,692.69x = 4,617,358,970.29
  5. Step 5: Solve for x
    x = 4,617,358,970.29/100,692.69
  6. Step 6: Final answer
    x = 45,855.95

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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.