Home / 128,934.71-193,358.27-44,675.21

Finding the Fourth Proportional to 128,934.71, 193,358.27 and 44,675.21

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Solution

The fourth proportional to 128,934.71, 193,358.27 and 44,675.21 is: 66,997.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,934.71 : 193,358.27 = 44,675.21 : x
  2. Step 2: Convert to fraction form
    128,934.71/193,358.27 = 44,675.21/x
  3. Step 3: Cross multiply
    128,934.71x = 193,358.27 × 44,675.21
  4. Step 4: Simplify right side
    128,934.71x = 8,638,321,317.49
  5. Step 5: Solve for x
    x = 8,638,321,317.49/128,934.71
  6. Step 6: Final answer
    x = 66,997.64

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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.