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Finding the Fourth Proportional to 180,220.96, 248,694.89 and 99,643.65

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Solution

The fourth proportional to 180,220.96, 248,694.89 and 99,643.65 is: 137,502.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,220.96 : 248,694.89 = 99,643.65 : x
  2. Step 2: Convert to fraction form
    180,220.96/248,694.89 = 99,643.65/x
  3. Step 3: Cross multiply
    180,220.96x = 248,694.89 × 99,643.65
  4. Step 4: Simplify right side
    180,220.96x = 24,780,865,705.62
  5. Step 5: Solve for x
    x = 24,780,865,705.62/180,220.96
  6. Step 6: Final answer
    x = 137,502.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.