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Finding the Fourth Proportional to 156,573, 216,064.44 and 84,950.28

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Solution

The fourth proportional to 156,573, 216,064.44 and 84,950.28 is: 117,227.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,573 : 216,064.44 = 84,950.28 : x
  2. Step 2: Convert to fraction form
    156,573/216,064.44 = 84,950.28/x
  3. Step 3: Cross multiply
    156,573x = 216,064.44 × 84,950.28
  4. Step 4: Simplify right side
    156,573x = 18,354,734,676.04
  5. Step 5: Solve for x
    x = 18,354,734,676.04/156,573
  6. Step 6: Final answer
    x = 117,227.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.