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Finding the Fourth Proportional to 187,012, 280,523.64 and 73,155.24

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Solution

The fourth proportional to 187,012, 280,523.64 and 73,155.24 is: 109,735.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,012 : 280,523.64 = 73,155.24 : x
  2. Step 2: Convert to fraction form
    187,012/280,523.64 = 73,155.24/x
  3. Step 3: Cross multiply
    187,012x = 280,523.64 × 73,155.24
  4. Step 4: Simplify right side
    187,012x = 20,521,774,209.87
  5. Step 5: Solve for x
    x = 20,521,774,209.87/187,012
  6. Step 6: Final answer
    x = 109,735.07

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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.