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Finding the Fourth Proportional to 147,356.96, 203,352.59 and 80,288.96

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Solution

The fourth proportional to 147,356.96, 203,352.59 and 80,288.96 is: 110,798.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,356.96 : 203,352.59 = 80,288.96 : x
  2. Step 2: Convert to fraction form
    147,356.96/203,352.59 = 80,288.96/x
  3. Step 3: Cross multiply
    147,356.96x = 203,352.59 × 80,288.96
  4. Step 4: Simplify right side
    147,356.96x = 16,326,967,964.41
  5. Step 5: Solve for x
    x = 16,326,967,964.41/147,356.96
  6. Step 6: Final answer
    x = 110,798.76

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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.