Home / 103,427.52-142,784.24-69,613.92

Finding the Fourth Proportional to 103,427.52, 142,784.24 and 69,613.92

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Solution

The fourth proportional to 103,427.52, 142,784.24 and 69,613.92 is: 96,103.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,427.52 : 142,784.24 = 69,613.92 : x
  2. Step 2: Convert to fraction form
    103,427.52/142,784.24 = 69,613.92/x
  3. Step 3: Cross multiply
    103,427.52x = 142,784.24 × 69,613.92
  4. Step 4: Simplify right side
    103,427.52x = 9,939,770,660.62
  5. Step 5: Solve for x
    x = 9,939,770,660.62/103,427.52
  6. Step 6: Final answer
    x = 96,103.73

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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.