Home / 102,776.72-141,829.26-62,491.64

Finding the Fourth Proportional to 102,776.72, 141,829.26 and 62,491.64

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Solution

The fourth proportional to 102,776.72, 141,829.26 and 62,491.64 is: 86,236.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,776.72 : 141,829.26 = 62,491.64 : x
  2. Step 2: Convert to fraction form
    102,776.72/141,829.26 = 62,491.64/x
  3. Step 3: Cross multiply
    102,776.72x = 141,829.26 × 62,491.64
  4. Step 4: Simplify right side
    102,776.72x = 8,863,143,057.39
  5. Step 5: Solve for x
    x = 8,863,143,057.39/102,776.72
  6. Step 6: Final answer
    x = 86,236.87

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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.