Home / 159,553.41-220,221.23-99,169.66

Finding the Fourth Proportional to 159,553.41, 220,221.23 and 99,169.66

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Solution

The fourth proportional to 159,553.41, 220,221.23 and 99,169.66 is: 136,877.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,553.41 : 220,221.23 = 99,169.66 : x
  2. Step 2: Convert to fraction form
    159,553.41/220,221.23 = 99,169.66/x
  3. Step 3: Cross multiply
    159,553.41x = 220,221.23 × 99,169.66
  4. Step 4: Simplify right side
    159,553.41x = 21,839,263,705.40
  5. Step 5: Solve for x
    x = 21,839,263,705.40/159,553.41
  6. Step 6: Final answer
    x = 136,877.45

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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.