Home / 152,078.40-209,835.36-88,383.60

Finding the Fourth Proportional to 152,078.40, 209,835.36 and 88,383.60

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Solution

The fourth proportional to 152,078.40, 209,835.36 and 88,383.60 is: 121,950.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,078.40 : 209,835.36 = 88,383.60 : x
  2. Step 2: Convert to fraction form
    152,078.40/209,835.36 = 88,383.60/x
  3. Step 3: Cross multiply
    152,078.40x = 209,835.36 × 88,383.60
  4. Step 4: Simplify right side
    152,078.40x = 18,546,004,524.10
  5. Step 5: Solve for x
    x = 18,546,004,524.10/152,078.40
  6. Step 6: Final answer
    x = 121,950.29

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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.