Home / 236,123.11-354,090.70-86,329.27

Finding the Fourth Proportional to 236,123.11, 354,090.70 and 86,329.27

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Solution

The fourth proportional to 236,123.11, 354,090.70 and 86,329.27 is: 129,459.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,123.11 : 354,090.70 = 86,329.27 : x
  2. Step 2: Convert to fraction form
    236,123.11/354,090.70 = 86,329.27/x
  3. Step 3: Cross multiply
    236,123.11x = 354,090.70 × 86,329.27
  4. Step 4: Simplify right side
    236,123.11x = 30,568,391,644.79
  5. Step 5: Solve for x
    x = 30,568,391,644.79/236,123.11
  6. Step 6: Final answer
    x = 129,459.55

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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.