Home / 74,128.52-111,193-17,968.41

Finding the Fourth Proportional to 74,128.52, 111,193 and 17,968.41

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Solution

The fourth proportional to 74,128.52, 111,193 and 17,968.41 is: 26,952.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,128.52 : 111,193 = 17,968.41 : x
  2. Step 2: Convert to fraction form
    74,128.52/111,193 = 17,968.41/x
  3. Step 3: Cross multiply
    74,128.52x = 111,193 × 17,968.41
  4. Step 4: Simplify right side
    74,128.52x = 1,997,960,857.17
  5. Step 5: Solve for x
    x = 1,997,960,857.17/74,128.52
  6. Step 6: Final answer
    x = 26,952.66

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1.5x scale

Why These Related Problems?

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