Home / 105,777.20-158,624.64-53,150

Finding the Fourth Proportional to 105,777.20, 158,624.64 and 53,150

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Solution

The fourth proportional to 105,777.20, 158,624.64 and 53,150 is: 79,704.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,777.20 : 158,624.64 = 53,150 : x
  2. Step 2: Convert to fraction form
    105,777.20/158,624.64 = 53,150/x
  3. Step 3: Cross multiply
    105,777.20x = 158,624.64 × 53,150
  4. Step 4: Simplify right side
    105,777.20x = 8,430,899,616.00
  5. Step 5: Solve for x
    x = 8,430,899,616.00/105,777.20
  6. Step 6: Final answer
    x = 79,704.32

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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.