Home / 151,620.08-209,253.78-87,960.02

Finding the Fourth Proportional to 151,620.08, 209,253.78 and 87,960.02

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Solution

The fourth proportional to 151,620.08, 209,253.78 and 87,960.02 is: 121,395.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,620.08 : 209,253.78 = 87,960.02 : x
  2. Step 2: Convert to fraction form
    151,620.08/209,253.78 = 87,960.02/x
  3. Step 3: Cross multiply
    151,620.08x = 209,253.78 × 87,960.02
  4. Step 4: Simplify right side
    151,620.08x = 18,405,966,673.88
  5. Step 5: Solve for x
    x = 18,405,966,673.88/151,620.08
  6. Step 6: Final answer
    x = 121,395.31

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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.