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Finding the Fourth Proportional to 103,447.58, 155,239.41 and 56,733.26

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Solution

The fourth proportional to 103,447.58, 155,239.41 and 56,733.26 is: 85,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,447.58 : 155,239.41 = 56,733.26 : x
  2. Step 2: Convert to fraction form
    103,447.58/155,239.41 = 56,733.26/x
  3. Step 3: Cross multiply
    103,447.58x = 155,239.41 × 56,733.26
  4. Step 4: Simplify right side
    103,447.58x = 8,807,237,809.78
  5. Step 5: Solve for x
    x = 8,807,237,809.78/103,447.58
  6. Step 6: Final answer
    x = 85,137.20

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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.