Home / 236,018.50-354,062.58-86,223.78

Finding the Fourth Proportional to 236,018.50, 354,062.58 and 86,223.78

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Solution

The fourth proportional to 236,018.50, 354,062.58 and 86,223.78 is: 129,348.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,018.50 : 354,062.58 = 86,223.78 : x
  2. Step 2: Convert to fraction form
    236,018.50/354,062.58 = 86,223.78/x
  3. Step 3: Cross multiply
    236,018.50x = 354,062.58 × 86,223.78
  4. Step 4: Simplify right side
    236,018.50x = 30,528,613,680.81
  5. Step 5: Solve for x
    x = 30,528,613,680.81/236,018.50
  6. Step 6: Final answer
    x = 129,348.39

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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.