Home / 151,815.70-209,524.13-88,153.51

Finding the Fourth Proportional to 151,815.70, 209,524.13 and 88,153.51

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Solution

The fourth proportional to 151,815.70, 209,524.13 and 88,153.51 is: 121,662.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,815.70 : 209,524.13 = 88,153.51 : x
  2. Step 2: Convert to fraction form
    151,815.70/209,524.13 = 88,153.51/x
  3. Step 3: Cross multiply
    151,815.70x = 209,524.13 × 88,153.51
  4. Step 4: Simplify right side
    151,815.70x = 18,470,287,489.20
  5. Step 5: Solve for x
    x = 18,470,287,489.20/151,815.70
  6. Step 6: Final answer
    x = 121,662.57

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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.