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Finding the Fourth Proportional to 103,173.37, 154,803.80 and 56,371.57

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Solution

The fourth proportional to 103,173.37, 154,803.80 and 56,371.57 is: 84,581.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,173.37 : 154,803.80 = 56,371.57 : x
  2. Step 2: Convert to fraction form
    103,173.37/154,803.80 = 56,371.57/x
  3. Step 3: Cross multiply
    103,173.37x = 154,803.80 × 56,371.57
  4. Step 4: Simplify right side
    103,173.37x = 8,726,533,247.97
  5. Step 5: Solve for x
    x = 8,726,533,247.97/103,173.37
  6. Step 6: Final answer
    x = 84,581.26

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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.