Home / 128,837.26-193,276.58-40,111.27

Finding the Fourth Proportional to 128,837.26, 193,276.58 and 40,111.27

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Solution

The fourth proportional to 128,837.26, 193,276.58 and 40,111.27 is: 60,173.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,837.26 : 193,276.58 = 40,111.27 : x
  2. Step 2: Convert to fraction form
    128,837.26/193,276.58 = 40,111.27/x
  3. Step 3: Cross multiply
    128,837.26x = 193,276.58 × 40,111.27
  4. Step 4: Simplify right side
    128,837.26x = 7,752,569,085.06
  5. Step 5: Solve for x
    x = 7,752,569,085.06/128,837.26
  6. Step 6: Final answer
    x = 60,173.35

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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.