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Finding the Fourth Proportional to 176,322.10, 243,324.49 and 100,870.60

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Solution

The fourth proportional to 176,322.10, 243,324.49 and 100,870.60 is: 139,201.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,322.10 : 243,324.49 = 100,870.60 : x
  2. Step 2: Convert to fraction form
    176,322.10/243,324.49 = 100,870.60/x
  3. Step 3: Cross multiply
    176,322.10x = 243,324.49 × 100,870.60
  4. Step 4: Simplify right side
    176,322.10x = 24,544,287,300.99
  5. Step 5: Solve for x
    x = 24,544,287,300.99/176,322.10
  6. Step 6: Final answer
    x = 139,201.42

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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.