Home / 136,534.33-188,408.19-85,545.64

Finding the Fourth Proportional to 136,534.33, 188,408.19 and 85,545.64

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Solution

The fourth proportional to 136,534.33, 188,408.19 and 85,545.64 is: 118,047.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,534.33 : 188,408.19 = 85,545.64 : x
  2. Step 2: Convert to fraction form
    136,534.33/188,408.19 = 85,545.64/x
  3. Step 3: Cross multiply
    136,534.33x = 188,408.19 × 85,545.64
  4. Step 4: Simplify right side
    136,534.33x = 16,117,499,194.79
  5. Step 5: Solve for x
    x = 16,117,499,194.79/136,534.33
  6. Step 6: Final answer
    x = 118,047.23

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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.