Home / 140,085.75-193,317.44-79,656.41

Finding the Fourth Proportional to 140,085.75, 193,317.44 and 79,656.41

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Solution

The fourth proportional to 140,085.75, 193,317.44 and 79,656.41 is: 109,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,085.75 : 193,317.44 = 79,656.41 : x
  2. Step 2: Convert to fraction form
    140,085.75/193,317.44 = 79,656.41/x
  3. Step 3: Cross multiply
    140,085.75x = 193,317.44 × 79,656.41
  4. Step 4: Simplify right side
    140,085.75x = 15,398,973,345.80
  5. Step 5: Solve for x
    x = 15,398,973,345.80/140,085.75
  6. Step 6: Final answer
    x = 109,925.33

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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.