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Finding the Fourth Proportional to 159,807.69, 220,527.12 and 91,776.70

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Solution

The fourth proportional to 159,807.69, 220,527.12 and 91,776.70 is: 126,647.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,807.69 : 220,527.12 = 91,776.70 : x
  2. Step 2: Convert to fraction form
    159,807.69/220,527.12 = 91,776.70/x
  3. Step 3: Cross multiply
    159,807.69x = 220,527.12 × 91,776.70
  4. Step 4: Simplify right side
    159,807.69x = 20,239,251,334.10
  5. Step 5: Solve for x
    x = 20,239,251,334.10/159,807.69
  6. Step 6: Final answer
    x = 126,647.54

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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.