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Finding the Fourth Proportional to 163,406.48, 225,495.12 and 99,850.64

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Solution

The fourth proportional to 163,406.48, 225,495.12 and 99,850.64 is: 137,790.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,406.48 : 225,495.12 = 99,850.64 : x
  2. Step 2: Convert to fraction form
    163,406.48/225,495.12 = 99,850.64/x
  3. Step 3: Cross multiply
    163,406.48x = 225,495.12 × 99,850.64
  4. Step 4: Simplify right side
    163,406.48x = 22,515,832,048.88
  5. Step 5: Solve for x
    x = 22,515,832,048.88/163,406.48
  6. Step 6: Final answer
    x = 137,790.33

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1.5x scale

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.