Home / 105,775.20-158,621.64-53,148

Finding the Fourth Proportional to 105,775.20, 158,621.64 and 53,148

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Solution

The fourth proportional to 105,775.20, 158,621.64 and 53,148 is: 79,701.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,775.20 : 158,621.64 = 53,148 : x
  2. Step 2: Convert to fraction form
    105,775.20/158,621.64 = 53,148/x
  3. Step 3: Cross multiply
    105,775.20x = 158,621.64 × 53,148
  4. Step 4: Simplify right side
    105,775.20x = 8,430,422,922.72
  5. Step 5: Solve for x
    x = 8,430,422,922.72/105,775.20
  6. Step 6: Final answer
    x = 79,701.32

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