Home / 163,313.82-225,397.49-99,688.32

Finding the Fourth Proportional to 163,313.82, 225,397.49 and 99,688.32

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Solution

The fourth proportional to 163,313.82, 225,397.49 and 99,688.32 is: 137,584.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,313.82 : 225,397.49 = 99,688.32 : x
  2. Step 2: Convert to fraction form
    163,313.82/225,397.49 = 99,688.32/x
  3. Step 3: Cross multiply
    163,313.82x = 225,397.49 × 99,688.32
  4. Step 4: Simplify right side
    163,313.82x = 22,469,496,611.88
  5. Step 5: Solve for x
    x = 22,469,496,611.88/163,313.82
  6. Step 6: Final answer
    x = 137,584.78

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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.