Home / 102,958.60-142,072.50-57,633.64

Finding the Fourth Proportional to 102,958.60, 142,072.50 and 57,633.64

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Solution

The fourth proportional to 102,958.60, 142,072.50 and 57,633.64 is: 79,528.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,958.60 : 142,072.50 = 57,633.64 : x
  2. Step 2: Convert to fraction form
    102,958.60/142,072.50 = 57,633.64/x
  3. Step 3: Cross multiply
    102,958.60x = 142,072.50 × 57,633.64
  4. Step 4: Simplify right side
    102,958.60x = 8,188,155,318.90
  5. Step 5: Solve for x
    x = 8,188,155,318.90/102,958.60
  6. Step 6: Final answer
    x = 79,528.62

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Why These Related Problems?

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