Home / 107,518.80-161,148.60-54,901.20

Finding the Fourth Proportional to 107,518.80, 161,148.60 and 54,901.20

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Solution

The fourth proportional to 107,518.80, 161,148.60 and 54,901.20 is: 82,285.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,518.80 : 161,148.60 = 54,901.20 : x
  2. Step 2: Convert to fraction form
    107,518.80/161,148.60 = 54,901.20/x
  3. Step 3: Cross multiply
    107,518.80x = 161,148.60 × 54,901.20
  4. Step 4: Simplify right side
    107,518.80x = 8,847,251,518.32
  5. Step 5: Solve for x
    x = 8,847,251,518.32/107,518.80
  6. Step 6: Final answer
    x = 82,285.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.