Home / 78,732.08-117,576.24-69,193.52

Finding the Fourth Proportional to 78,732.08, 117,576.24 and 69,193.52

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Solution

The fourth proportional to 78,732.08, 117,576.24 and 69,193.52 is: 103,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732.08 : 117,576.24 = 69,193.52 : x
  2. Step 2: Convert to fraction form
    78,732.08/117,576.24 = 69,193.52/x
  3. Step 3: Cross multiply
    78,732.08x = 117,576.24 × 69,193.52
  4. Step 4: Simplify right side
    78,732.08x = 8,135,513,913.96
  5. Step 5: Solve for x
    x = 8,135,513,913.96/78,732.08
  6. Step 6: Final answer
    x = 103,331.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.